It is some time ago that I have seen that movie but what I still remember is this: I did not enjoy it. Might it be that the watcher of this movie should also suffer like the protagonist or whatever the director's intention was. I nearly could not await the end of the movie. It had nice effects but there was no plot, or at least a plot that could catch my attention. I was bored - perhaps this is how it is in space when you are alone. But I cannot imagine why so many critics and users rated this movie 7 or more. At best it is a movie to pass the time. But it could be that you won't enjoy it. I wonder why such famous actors accepted to be part of this movie, what might have been their reasoning? I hope they could see something I cannot and enjoyed making it!