Project Hail Mary book and movie spoilers
My sister and I walked out of the theater arguing loudly (because I can't help myself and she was matching my energy) about the likelihood of Strat getting arrested for the stuff she did during the course of the building of PHM. I understood why the movie chose to end it with her still seeming to do her science work, but my most missed thing at the end from the book was Strat openly admitting she was going awful things and that she would most likely end up in a prison. That yes she was asking for and forcing people to give up their lives, but she fully expected hers to more or less end with this project.
My mom's only input is that given today's events, people in power don't get punished. The thing is, Strat isn't in power because she has money. My sister went on about how she saved them though, and we had to go on about Earth not knowing it would work for a long time though and in the meantime she's the perfect fall-guy.
It was kind of cute really, though I think my mom genuinely didn't care for the debate. She and my sister thought the ending the movie gave far more plausible and Empty and I were like, 'we get it, but she's in jail.' XD
To be fair, I think Weir is the type of author who's likely want to see Strat have been continuing her work, so they've got that.
I think at the end of the day though, the thing I liked Most about the book is that we don't get to know. We get the Earth ending we do because Weir writes about hope and discovery because he would see the zeitgeist regarding space exploration be one of curiosity and to Do It. Messages of despair and fighting and desolation don't move that message forward, but those things would have happened on Earth here as things progressed. Not Getting to See That is part of the point.
Maybe this is where I get on my high horse though and think myself above movie audiences, but I feel like the movie did it because they knew audiences would be pissed not to get a more clear picture of hope for earth after getting their hope for Grace and Rocky, and why risk the audience appeal in the last ten minutes of the film?