A complete ripoff of "Alien", which of course was a blatant ripoff of "It! The Terror From Beyond Space" (1958). How many times will an audience be sucked into watching a alien monster pick off crew members one by one trapped in their spaceship? Often enough I guess, especially if the film stars audience bait like Ryan Reynolds and Jake Gyllenhaal.
The rest of the crew is filled out by Rebecca Ferguson, Hiroyuki Sanada, Ariyon Bakare, and Olga Dihovichnaya. Everyone plays their part well and the film literally becomes a guessing game about who will be the last to survive as the ridiculous looking alien (it reminded me of the octopus in "Finding Dory") starts picking them off.
There is a great attention to detail on the space visuals (everyone floats weightless around the ship) but more attention should have been paid to the script. The film, while suspenseful at times, never really scares and one twist in the story does not make for a rewarding experience.
Sorry but "Life" is dead on arrival (you saw that coming). Bring on "Alien: Covenant".