Not bad but...

Rating: 5/10 (24 June 2017)

So here we have another monster movie with an isolated group being picked off one-by-one by a monster of unbelievable intelligence and physical tenacity. For sci-fi geeks like me, the ISS as context lends appeal, but the movie overall doesn't overly appeal to the intelligence, being rather predictable..
Arguably the most credible scenes are where the monster starts off as a dormant microscopic Martian organism. It always amazes me how such creatures (like in Promethesus) gain strength and size at a rate which beggars belief. At least "Calvin" (the name selected by a school on Earth chosen from among 11,000) is seen to grow by feeding of its human hosts giving some plausibility.
It's survival in airless space is somehow due to its ability (maybe like whales) to store oxygen, and somehow its tissues are durable enough to resist hard vacuum severe enough to pit aluminium.
But the killer for me was the "surprise" ending where David Jordan (Gyllenhaal), sacrificing himself to pilot a lifeboat with the creature into deep space and away from Earth, finds himself suddenly switched with Miranda North (Rebecca Ferguson) who is supposed safely returning to Earth. How the heck could that possibly happen??? Completely illogical and unsatisfying even if it gives the desired ending (Calvin gets to Earth and will presumably devour all humans..).
Great CGI but once again demonstrating that sFX do not the movie make...