The Film surprises you on the sudden horror attributes it has. For one, you don’t expect a guy coming onto their ship to try and kill them all. You don’t expect to the antagonist of the film to be a man whose skin is melting off. The whole atmosphere of the film starts out pretty bright, and as the film progresses, the atmosphere becomes darker and darker. I found this ironic seeing as how they were getting closer and closer to the sun, but it adds to the intensity of the plot. In those dark points of the film you have the bright points when the religious characters purify themselves through the filter.
A message for Fans:
I understand the debate people have on movies like this. Some fans of science fiction can’t stand how movies don’t account for their science. A bit of advice; just go with it. It’ll be worth it in the end. You should enjoy the movie for the same reason that Trekkie’s enjoy Star Trek. Because it’ll never happen in our life time and this is what we get.