'Apollo 18': First look at the trailer
In the movie, which consists mainly of "found" footage (found in the same sense that the film in "Paranormal Activity" was found), NASA didn't end the Apollo program with the Dec. 17, 1972 launch of Apollo 17. Instead, a secret 18th mission was undertaken -- one dogged by mysterious things that go bump on the dark side of the moon.
According to a press release from the Weinstein Company, NASA denies the film's authenticity. Decide for yourself by watching this first "official" trailer: