The Last Days on Mars

Your typical sci-fi horror movie about researchers finding evidence of microbial life on Mars. Which immediately infects them and turns them into monsters. Monsters which are still smart enough to use tools to smash things, mind you. The bacteria are also resistant to any antibiotic the researchers have available, and somehow able to keep a person's body moving while exposed to the Martian elements. Not at all sure how that works.

The infected aren't much different than your usual fast zombies. There's never any sense of what they're after. Are they killing people because the research team are considered interlopers, or just to propagate themselves? No idea. so like a zombie movie, the film is more about what people do under stress. As the analyst character oh-so-helpfully states early on, crisis situations don't change people, they just reveal what the person was like all along.

The movie spends just enough time introducing the characters to get a few broad strokes, enough to tell there's some cliques in play among them, before people start dying. So you have the character who starts the whole thing, by trying to sneak off and investigate to hoard the credit, and the other scientist who snoops through his files and finds out, mostly because she's pissed she thinks he's getting to play by different rules than everyone else. The sort of lazy, weary guy who gets dragged along because he's on the boss' shitlist, I think. The analyst turns out to be the type of person who abandons everyone else at the first opportunity.

Liev Schreiber's character had a close call on the voyage out to Mars, briefly exposed to space, that gives him flashbacks/panic attacks at various points. I guess surviving that because someone helped makes him determined to try and help everyone else survive, so that's the role he plays. The one who doesn't want to leave anyone behind, even when they're telling him to.

The movie ends without letting you know whether he's been infected or not. Given the amount of blood that was floating around in zero gravity, probably, but I guess it's left to our imagination whether he got incredibly lucky or not.