Apollo 18 is the prequel to Transformers: Dark of the Moon.As someone stated in the Headscratchers for the movie, the footage was recovered by Optimus Prime when they went to recover Sentinel Prime. It also explains why the "aliens" were disguised as rocks, as they had yet to assimilate any humans to be able to copy them. However, after killing the crews of the Soviet and American vehicles, well...
Everything they did was being broadcast back to earth, live.This explains how the video got back to earth. They may not have been watching it all as it came in, maybe it was scrambled for the Do D.
Apollo 18 is a prequel to Resident Evil 4The rocks on the moon are strain of Las Plagas adapted to space. Another meteor fell in Notspain during the middle ages and its plagas developed into the strain that appeared in Resident Evil 4 and 5
The Lunar aliens were made by the Engineers(As, of course, was Clover...)
This movie was a prequel to Dead SpaceThe aliens weren't just disguised as rocks. Just like the Necromorph moons from Dead Space 3, our moon is made of undead alien monsters. Luckily (hopefully), we don't find this out thanks to the government keeping it under wraps, but we do encounter similar things once we colonize space...