Apollo 18 (2011) http://www.imdb.com/title/tt1772240/
Although Apollo 17 was the official final moon landing, one more secret mission to the moon took place after. The astronauts discover something they weren't quite prepared for. And no, it was not the Transformers crash site on the moon - that was a different film. Not only do they discover the Soviets had a manned lander make it to the moon, they discover what took out the Cosmonaut aboard...
This film is one of those "found footage restored and cut into a coherent story" types of films, just like "The Blair Witch Project".
Okay -- I really liked the premise of the film. Unfortunately the execution of that story fell a little short of the expectations. And, honestly, I started to drift off into sleep near the end, which is not a good sign. I suspect they had more time to fill than story. Pared down this might have made a decent one-hour TV movie special, or perhaps stretched to one and a half hours with thirty minutes of commercials. If Twilight Zone was still around it would've been a good fit, which, I suppose, would have made "Stephen Hawking's Sci-Fi Masters/Masters of Science Fiction" a good enough venue.
Yeah, that's about all I have to say about it.