There’s a cheeky moment at the beginning of the latest in the series about dinosaurs brought back to life, originally based on the book by Michael Crichton. (I think it is very funny that the screenwriting credits say “based on characters created by Michael Crichton,” when the only “characters” in the movie based on his book are the dinosaurs.) We think we know where it’s going when we hear a roar and see the tops of the high trees rustling, then shaking.

We sit back, expecting a dinosaur. But no, it’s just a helicopter. And then there’s another wink at the audience, a close-up harking back to the first film, one of the greatest shots in film history. But this time, it’s not a dinosaur in the rearview mirror. It’s just a traffic jam. Caused by a dinosaur. But at this point, the stuck driver we zero in on not wonderstruck or terrified. He’s just annoyed, as he might be if he was just being blocked by construction.

All these years after the dino DNA was extracted from the amber, humans have acclimated to, even bored with the idea that prehistoric creatures are a part of 21st century life.

Most of them have died off. The scary ones are pretty much located in the equator, closest to their habitat 66 million years ago, before they went extinct. That area is now off limits to all humans.

But one thing we’ve learned from the previous films and from ancient Greek tragedies about hubris and from pretty much all of human history is that the greatest adaptive and the greatest self-destructive quality of human beings is that we just don’t like being told what we can’t do. And so, screenwriter David Koepp, who has been writing these films since the first one, faces his greatest challenge in trying to give the human characters a new reason to put themselves in danger by going back to the dinosaurs again, what Alfred Hitchcock called the MacGuffin (or Maguffin), the simplest possible explanation of what it is the heroes need to get or accomplish.

In this case, it’s….dino DNA. Martin Krebs (Rupert Friend), the representative of a pharma company, approaches adventurer/soldier of fortune Zora (always-game Scarlett Johansson), whose specialty is getting people and objects into and out of places they are not supposed to be. For money. He tells her his company can make a revolutionary new medication that can forestall heart disease, adding as much as 20 years to people’s lives, if they can get samples of DNA from three of the largest dinosaurs, found only in the forbidden equator territory. It has to be taken from no more than 10 meters from the three biggest and they have to be alive because blah blah biology blah blah we need a reason for our characters to get into risk getting eaten situations. See: MacGuffin

Martin brings along a paleontologist, Dr. Henry Loomis (Jonathan Bailey, as magnetic and charming as he was in “Wicked,” even with an American accent).

Zora brings Martin to her long-time friend and colleague, the dashing Duncan (Mahershala Ali). He is the boat captain who will transport them, with his crew. Meanwhile, Reuben (Manuel Garcia-Rulfo) is out on his sailboat with two daughters and one’s boyfriend. Once we have had a chance to get to know them (cute little girl played by Audrina Miranda, useless teenage boyfriend played by David Iacono, for quasi comic relief and something of a redemption arc). The sailboat is toppled by a gigantic swimming dinosaur. Will our group in search of dino DNA take a detour to rescue them? Yes.

And then, what we came for: dinosaurs chasing (and eating) people. And, just to mix it up a bit, some people chasing dinosaurs. A sprinkle of humor (useless boyfriend), a touch of warmth (useless boyfriend becomes useful), a very brief detour into morality and some might say politics only because everything seems to be political these days, but mostly the aforementioned chasing. The actors do as well as possible to hold their own on screen opposite leviathans, benefitted by Ali’s rakish charm and core of integrity, Johansson’s toughness-with-a-heart portrayal of Zora as someone who has seen the worst of humanity and perhaps done some, too, but never became cynical, and Garcia-Rulfo as a wholeheartedly devoted to his daughters.

The dinosaurs are (still) hugely (in all senses of the word) impressive. The way they move, the weight that digital effects often fails to get right, the scale/size, all spectacular. The movie seems to lose track of the set-up at the beginning about a lab experimenting with cross-breeding and mutating dinosaurs, but so much is happening it is understandable. Perhaps they’re saving that for the next one. We’ll be there.

Parents should know that this is a very intense and scary movie with constant peril and some graphic and disturbing images. Characters, including a little girl, are in danger and many characters are eaten by dinosaurs. There are brief sexual references and a reference to weed.

Family discussion: If you knew you could cure a disease by taking a risk like this, would you do it? Do you agree with the decision made by Henry and Zora? What are the upsides and downsides?

If you like this, try: the previous “Jurassic” movies and Crichton’s book