I saw this movie only a few days ago. **Spoilers Below*
The beginning was very good. Very awe inspiring and fascinating that they were on the ISS.
But then they manage to revive or create a new life form from Mars. What stumps me is that Doctor Hugh, he right away assumes it's friendly. He tries to pet it like it's a dog or something. I'm like "what? o.O What are you doing!" And later they kind of dismiss giving it food of any kind. It is still a living organism. It has to eat something. No surprise really that it eats flesh since that's what most creatures on Earth do. But then again this fella is from Mars, so can't really compare it to a carnivore from here.
Anyways, just bugs me so much that he pets it. I'm like "nooo! Dx" You have no idea if it's naturally aggressive. And then later their surprised that it attacks. It was sleeping, or hibernating. Then you poke it with an electric wand. Like are you kidding me? If this creature has any form of intelligence, which I must say it demonstrates later in the movie. It sure isn't going to like being poked with an electric wand. Alright that's assuming it actually felt pain when being poked. Many assumptions flying around. I just got to say that guy Hugh is just plain stupid. So many basic safety precautions dismissed for no apparent reason. What does Calvin look so cute he/she/it couldn't possibly cause any harm? Pah, so wrong about that.