“Needle in a Timestack” has an intriguing twist on the time travel genre. Ever since the originals, from A Connecticut Yankee in King Arthur’s Court to “The Time Machine” and up to “Back to the Future,” “The Time Traveler’s Wife,” “About Time,” and “Avengers: Endgame,” we almost always see time travel through the eyes of the travelers. The stories are about their goals, their discoveries, their impact. But in “Needle in a Timestack,” based on the story by Robert Silverberg, time travel is, unsurprisingly, extremely expensive, and thus available only to the very wealthy.

The main character is Nick (Leslie Odom, Jr.), and early in the film we see him at a meeting in his office, the boss and staff seated around a table in a conference room, and they are talking about ordinary business topics. But then something that looks like a virtual tsunami washes over the room. What is most surprising about it is that everyone acts as though it happens all the time. It turns out to be something like a temporal sonic boom, the backwash of some wealthy person’s time travel.

As we all know from concepts like “the butterfly effect” and many other time travel movies, the slightest difference a time traveler creates in the past can have enormous impact in the present day. Nick’s response to this evidence that someone has been tampering with time is to make sure that what he values most is still the same. And what he values most is his wife, Janine (Cynthia Erivo, and I cannot be the only person watching this film who wishes it was a musical, with both stars legendary Broadway singers). He calls her to make sure she is still the Janine he knows, the one who loves him and is committed to their life together.

There is a reason he is anxious about this. Nick and Janine were part of a group of friends in college, and Nick suspects that another member of the group, an extremely wealthy man named Tommy (Orlando Bloom), who was once married to Janine, may be using time travel to get her back, not by wooing her in the present but by preventing her from falling in love with Nick in the past. As science fiction writer David Brin says, time travel stories are all about “make it didn’t happen.”

Writer-director John Ridley gives the film a lived-in look. This is not one of those futuristic settings where everything is shiny and spotless and people wear clothes made of some fabric that has not been invented yet. Nick and Janine live in a world very much like the one we know and when we finally see how the time travel experience works, there are no fancy contraptions with spinning dials and Tesla coils. It is almost like a spa and its very ordinariness makes the story more intimate and compelling. The connection between Nick and Janine is powerful enough we think — and hope — it can survive any attempt to interfere with it. But it is clear that the tension caused by the risk of “didn’t happen” may have a destructive impact with or without Tommy’s involvement.

No one in science or fiction has figured out a way around the inevitable paradoxes of time travel, and this movie does not withstand too much attention to its internal logic. And some characters feel padded or distracting. But as a variation of Orpheus and Eurydice with some economic justice issues added in plus the electricity between the two stars (please put them in a musical together, please), its deep, unabashed romanticism makes it a worthy watch.

Parents should know that this film has some strong language, an off-screen accidental death, and some mature themes.

Family discussion: If you could go back in time, what would you do? What would you change? What do you think someone else would change that could affect your life?

If you like this, try: “About Time” and “Reminiscence”