Some Scary Stuff, but Illogic and 'Twist'

Rating: 6/10 (26 March 2017)

An homage to 'Alien', where a crew in space find themselves threatened by a creature from another world. The effects are dazzling, as the crew is in zero gravity the entire time floating and shooting themselves around the space station. There are some good points about scientific hubris and some scary moments as 'Calvin' evolves from a single cell to a jelly/starfish to a full on floating, slithering killer.
However, there are numerous plot holes including how their entire triple-quarantine system fails. When Calvin escapes the lab by squeezing into a tiny fire control vent, he should be trapped in that closed system. BTW, the flamethrower was out of fuel so how did it trigger the sprinklers? When the Soyuz comes to push them into space, there should have been no way the crew member could have opened their hatch; they had to expect that maybe someone wouldn't want to go into oblivion. Calvin's indestructibility was another. (He's carbon based and needs oxygen, but can survive in space? He hibernated on Mars and in the lab.] Finally, the twist end - that you can see coming - was really more of a cheat. Both escapees were pretty calm if their respective missions weren't working. I was hoping for a double-twist, "War of the Worlds" ending where Calvin jumped into the sea and dissolved in the salt water.