Jennifer Lawrence and Chris on movie reviews

I don’t do spoilers. But “Passengers” spoils itself.

An expensive sci-fi romance, the movie stars Jennifer Lawrence and Chris Pratt as civilian space travelers. Off to help colonize a new world, they wake up accidentally, 90 years early, with only each other for company.

That’s the way the trailers sell it, anyway.

The facts of their wake-up calls, though, are a little different. Actually, a lot different. And when they’re revealed, half an hour in or so, they change everything, especially how we feel about one of the characters.

“Passengers” has been made with a great deal of care. Its shiny spaceship has an interesting shape — all half-circles and tubes. Its interior design mimics a gigantic cruise-ship’s — small cabins, theme restaurants, a shopping mall.

With such a limited cast, charisma is important — and present. Pratt draws on all his regular-bro charm. Lawrence invests a thinly written character with a lot of her own passion and anger and pain.

“Passengers” is also part of a good trend — a sci-fi movie about being smart. Like “Arrival,” “The Martian” and “Interstellar, it’s a story that sets up a problem — and then gets its drama out of people solving it. There isn’t a murderous alien or raygun in the whole thing.

But then there’s the movie’s own problem — the ugliness of that early, ill-advised twist.