This special effects action comedy is fun for kids and fairly painless for adults. More important, it is a rare film directed at kids from 4th-8th grade, that most neglected of movie audiences. Not surprisingly, it is produced by Nickelodeon, the cable channel dedicated to just that group.

Zak (Jesse Bradford), the son of a loving but preoccupied scientist, accidentally takes a top-secret device, thinking it is a watch. It turns out to be a mechanism for speeding up the metabolic rate of whoever is touching it so that they see the world around them as almost frozen. To the rest of the world, they are moving to fast to be seen. At first, Zak uses it to impress a pretty girl (Paula Garces as Francesca) and together they have fun with some pranks and pay-backs. But then the bad guys come after them, and Zak and Francesca have to save the world.

The plot is a throw-back to the old Disney classics like “The Shaggy Dog” (also with a pretty teenage girl named Francesca) and “The Absent-Minded Professor.” Director Jonathan Frakes (of “Star Trek”) ably handles the sci-fi aspect with special effects that truly are special. We see water droplets suspended in air and a bee floating over a flower. The movie zips along quickly and has a lively pop soundtrack.

Parents should know that there is mild peril, though the guns only shoot ice bullets (to shock the system out of hyper-time) and no one is hurt. Francesca wears some revealing outfits, but she and Zak share only a couple of kisses. The movie features multi-ethnic good and bad guys and Francesca is strong, smart, and brave.

Families who see the movie should talk about the problems of developing technologies that can get into the wrong hands and the problems of balancing commitments to work and family.

Families who enjoy this movie will also enjoy The Rocketeer.

Chris Rock is a stand-up comic. The people behind this movie (the Weitz brothers, of “American Pie” and “Chuck and Buck”) wisely devote 25 percent of the film to Rock’s stand-up routine. Chris Rock is not an actor. He has a likeable comic presence and has made some memorable screen appearances in movies like “Dogma” (as an unrecorded disciple) and “Nurse Betty.” But he is not an actor. He has no capacity to show even the few emotions called for in this movie. During the dramatic and romantic episodes, he always appears to be counting the minutes before he can go back on stage. It is also a real disappointment to see the comic talents of one of today’s most talented actresses, Regina King (of “Jerry Maguire” and “How Stella Got Her Groove Back”) neglected

In this third movie version of the play originally called “Heaven Can Wait” (filmed under that name with Warren Beatty and filmed earlier as “Here Comes Mr. Jordan”), Rock plays Lance Barton, a would-be stand up comic who is prematurely delivered to heaven by an angel named Keyes (Eugene Levy) who did not know that he was supposed to survive a bicycle accident. Keyes’ boss, Mr. King (Chazz Palminteri), a cool, rat pack-ish guy in a dinner jacket, brings Lance back to earth to find him a new body to inhabit. Lance agrees to a temporary arrangement, the body of the world’s 15th richest man, Charles Wellington. Wellington is a white man in his sixties. And he has a young bimbo wife and an assistant who are trying to kill him.

Lance agrees to take on Wellington’s body when he sees Sontee (Regina King), a nurse who has come to tell Wellington off for taking over a local hospital and refusing patients who do not have insurance. But then he has to get used to being seen by the world as a rich white guy. When he tries to do his usual stand-up routine, about the differences between blacks and whites, the audience is shocked and offended. Somehow Sontee sees past his appearance,though. As they begin to fall in love, Lance is reluctant to leave Wellington’s body. But he is able to take what he has learned when it is time to move on.

Parents should know that the movie has strong language, including frequent use of the n-word. (The movie points out that everything depends on whether the word is said by a white person or a black person — this is well worth discussing.) There are sexual references and situations, including adultery and a proposed menage a trois (with two women in bed). A couple’s sexual relationship includes insults and fighting. Characters drink and smoke, and make drug references. Characters are killed (some accidentally) and one commits suicide because he has lost his money.

Families who see this movie should talk about what it would be like to inhabit the body of someone of another race (or gender). Tellingly, since he always appears the same to himself, Lance discovers that a new body he is inhabiting is black only when he tries to hail a cab and none will stop for him. How does humor change, based on who is telling the joke? What jokes do you tell about your own group that might offend you coming from someone else? Are there jokes you might tell among your own group that you would not say in a mixed group? Some families might want to talk about the conflicts between making a profit and helping the community raised by Sontee’s protests.

Families who enjoy this movie should see the two original versions with Robert Montgomery (father of “Betwitched’s” Elizabeth Montgomery) and Warren Beatty.

Paula Alquist (Ingrid Bergman) falls in love with Gregory Anton (Charles Boyer), a musician, and once they are married, he persuades her to move into the house she lived in as a child, which has been closed since her aunt was murdered there.

At first very happy, Paula soon becomes confused and insecure. While Gregory appears to be solicitous and caring, in reality he is cutting her off from all contact with anyone but himself, and making her doubt herself and her sanity. He convinces her that she is always losing things, that she sees things that are not there, that she is unstable and untrustworthy. Every night he leaves to play the piano in an apartment he has rented, and while he is gone the gaslights flicker and she hears mysterious noises from the attic. Gregory persuades her that these are just her delusions.

Just as Paula’s fragile hold on reality is about to break, she is visited by Brian Cameron (Joseph Cotten) of Scotland Yard, with information about Gregory. But can she trust him? Or is he just another illusion?

This classic of suspense is a good way to begin a conversation about vulnerability and manipulation. Gregory is almost able to drive Paula mad by making her think she is mad already. By cutting her off from any outside reality, by cooly denying what she sees and hears for herself, by telling her over and over again that she is helpless and incompetent, she begins to turn into the person he tells her that she is.

Families who see the movie should talk about these questions: “Gaslighting” someone is now an accepted psychiatric term, based on this movie, and its predecessor, the play “Angel Street.” What do you think it means? How does Gregory get Paula to doubt herself? How does the director help the viewer get some sense of Paula’s feelings of disorientation and doubt? Can someone make another person doubt him or herself as Gregory did? Can someone affect other people positively along the same lines, helping them to believe in themselves? How?

Families who enjoy this movie will also enjoy “Dial M for Murder” and “Suspicion.”

I’d like to add to the list of things I never want to see in another movie, right after lip-synching to Motown songs shown as a bonding experience and sign of inner hipness, anyone ever saying to anyone, “I got more from you than you ever will from me.”

I don’t mind too much when people feel that way in movies, but when they have to say it, it is a pretty good sign that the film-makers are so uncertain that the formula is working that they just want to make sure we get the picture by spelling it out for us. In movies like this, that’s a clear signal that we’re in the land of “minority or disabled people as magical healers,” and that is never a healthy place to be for too long.

But great actors love great challenges (just look at how many Oscar winners played people with disabilities), so we find ourselves with many opportunities to go there. Sean Penn is a fine actor with a first-rate performance here as Sam Dawson, a retarded man who wipes the tables at Starbucks and wants to fight for custody of his daughter. Fellow star Michelle Pfeiffer has less to work with than she did as a similar character in “One Fine Day,” but manages a good fake smile and a nice crying scene. In smaller parts, Diane Wiest, Richard Schiff, Mary Steenburgen, and Laura Dern are all very fine as well, and the soundtrack of Beatles songs recorded by some of today’s best artists, is a genuine treat. The real miracle of the movie, though, is tiny Dakota Fanning as Sam’s daughter Lucy Diamond Dawson (named for the Beatles song). She gives a performance of such sincerity, subtlety, and delicacy that she almost carries the entire movie herself.

Although Lucy’s mother, a homeless woman, leaves right after Lucy is born, Sam does just fine at first, with help from an agoraphobic neighbor (Wiest) who explains when Lucy is a newborn that Sam should put on Nickelodeon and feed her when “Hogan’s Heroes” is on and then again at “I Dream of Jeannie.” Sam also gets some help from an entourage of retarded pals, and all goes along pretty well until Lucy, at age seven, begins to surpass Sam intellectually.

Then the big, bad wolf, in the form of Family Protective Services (Loretta Devine and West Wing’s Richard Schiff) try to take her away. Sam picks lawyer Rita Harrison (Michelle Pfeiffer) out of the phone book because her name is Beatle-ish. Rita turns out to be a driven perfectionist who gets her cardio in by racing up the 26 flights to her office screaming into her cell phone but snarfs down marshmallows and jelly beans when she feels vulnerable. At first she turns Sam down, but later, shamed into taking on a pro bono case, she agrees to represent him. And sure enough, she learns from Sam to take time to smell the roses and play with her own son. Even would-be adoptive mother Laura Dern, in what amounts to almost a tribute to Sam’s favorite movie, “Kramer vs. Kramer,” shows up in the middle of the night to cry about what a loving father he is.

If only they had trusted the material and the audience a little more, this would not feel so manipulative and dishonest. But by making anyone who thinks that maybe a child needs more than a retarded parent can provide look like a monster, they turn the characters into cardboard. The glowing last scene, with Sam performng in a role that is clearly beyond what he has been shown to be capable of, is just phoney. Yeah, I cried, but I was annoyed about it.

Parents should know that this movie has the requisite one f-word, now standard in PG-13 movies, and some other mild language. There is a stong reference to adultery. Lucy’s mother is a homeless woman who deserts her after she is born. Some children (and adults) will find the custody conflicts and discussion of parenting issues upsetting.

Families who see this movie should talk about what Sam should do to give Lucy everything she needs. What problems are they likely to have as she gets older? What did Rita learn from Sam, and why was it only Sam who could teach it to her? A number of the people in the movie struggle with parenting issues — there has never been a court proceeding in history that permitted such discussion of the family lives of all the participants and witnesses. How do you see those struggles in the families around you?

Families who enjoy this movie will also enjoy Kramer vs. Kramer and Rain Man. They should also read the wonderful Expecting Adam by Martha Beck.

A message to those of you who might be considering larceny, fraud, or murder — it’s much, much more complicated than it seems. Unfortunately, the people who are not smart enough to figure that out are the people who think that it might make sense to, for example, inject paint into the number balls that they use to select the winning lottery ticket, so that only certain numbers will come up. It turns out that the people in this movie use whatever intelligence they have to think up this idea, leaving none left over for small details like what to do with the people who discover what they’ve done and want a piece of the action.

Inspired by a true story, this is the tale of a Harrisburg, PA television weatherman who conspires with the girl who selects the winning numbers for the state lottery to make sure they will have the winning ticket.

John Travolta plays Russ Richards, a popular local figure with a permanent parking space and roped-off table at his favorite local bistro, Denny’s. He has ambitiously but unwisely invested in a snowmobile franchise. Despite his professional expertise, he did not anticipate that Harrisburg’s uncharacteristically balmy winter would leave him on the brink of bankruptcy. He consults his friend, Gig (Tim Roth), who owns a strip joint. Gig arranges a robbery of the snowmobile showroom, but that goes wrong. So he suggests to Russ that perhaps Russ’s girlfriend Crystal (Lisa Kudrow), who goes on camera in a ball gown each week to select the winning lottery numbers, might just be persuaded to help make sure that the numbers she picks are the ones they pick. It turns out that Crystal is delighted.

Russ and Crystal behave like people who know for sure that they were meant to be rich, and are getting increasingly annoyed that somehow the message never got across. But Russ is a sweet guy at heart, if cowardly and self-centered. What he really loves are the fans. Crystal turns out to be completely ruthless. What she really loves is stuff — as she models her new Italian leather coat she happily announces that she will never again have to wear anything that didn’t come over on a boat. Crystal brings in her weird, hulking, snuffling, fun-doll fan of a cousin (Michael Moore) to be the ostenstible purchaser of the lottery ticket. But when he tells her he wants more of the money, she dispatches him with less interest than she would show in a broken nail.

Director Nora Ephron, best known for writing and directing sparkly romantic comedies like “Sleepless in Seattle,” goes for a darker kind of comedy here. She gets terrific performances from a first-rate cast, especially Bill Pullman as a lazy police officer. But Ephron is a long way from the Coen brothers. She has some sharp insights about the ambitions and strategies of her characters and there are some very funny moments, a sort of “Maltese Falcon” on acid, but ultimately it does not work.

Parents should know that the movie has very strong language, nudity, sexual references and situations, assault, murder, shooting, drinking, smoking, and drug use, in addition to the overall theme of larceny and fraud. Some characters are punished, but some are not.

Families who see this movie should talk about why the money is important to the characters and how they calculate their risks. Movies about crime are always in some sense movies about problem-solving, and it is worth pointing out the way that the characters respond to the initial challenge of figuring out a way to sabotage the lottery and to the subsequent problems that they did not anticipate. Families may also want to talk about why people do and do not obey the law and what the consequences are for themselves and society if they don’t.

Families who enjoy this movie will also enjoy “Fargo,” a darker but more successful comedy about larceny and murder.