The best science fiction takes an aspect of science and uses it to illuminate human nature or present dangers. The trick is that the science has to be real, or at least believable… and you can get away with one really big lie (like faster-than-light travel or communication). Io has some truly human moments and struggles and it is nicely driven by Margaret Qualley (Death Note) and Anthony Mackie (Love the Coopers, Avengers) with a small assist from Danny Houston (Game Night).
The science, however, is truly, horribly wrong from the very opening moments of the film. I had hoped that by ignoring the opening monologue I could enjoy the rest of the movie more, but the writers doubled and even tripled down on their awful understanding of space travel and evolution making it difficult not to grimace. I will admit that director Jonathan Helpert managed to build the tension and keep the story going despite these issues. With only three characters that took some effort, even with the talent he had to work with.
This one is really your choice. Qualley continues to show her talent and Mackie gets to work with a new type of character. If you like these actors or want to see more of their work, you can make it through this flick. But as a story, it is the kind of science fiction I’d like to stamp out.