I liked this movie, however you do need to turn your brain off and enjoy it. There are some huge plot holes such as how the footage got into the hands of the filmmakers or why the astronauts would have multiple camera angles of footage of them just talking or sleeping. Film is valuable, so I wouldn't have thought they would just waste it like that. I read a short story years ago that has roughly the same plot as this in an old issue of "Fantastic Tales". A mission to the moon and they are not alone.