They did a pretty good job of making it look fairly real. I was looking for anything that appeared to be wrong with the weightlessness or moon gravity and there were no obvious mistakes that I noticed. It looks quite a lot like some of the documentaries you see about the moon trips. There's a fair amount of shaky, handheld camera shots, but that was typical of filming in the 70s. The story was a little slow but holds your attention pretty well through the movie, with a few spots that make you jump a little. Overall it's reasonably interesting. I might go see it again.