Department of Defense. The Deputy Secretary informs Anderson that they cannot allow him to return to Earth, admitting they are aware of the situation and incorrectly believe he is also infected. Anderson manages to contact Grey and they make arrangements for Anderson to return to Freedom. Anderson prepares the lander for launch, but Walker arrives, revealing that he survived the alien encounter and demanding to be let in. However, he is now completely psychotic and when Anderson refuses to let him in, he tries to break the lander's window with a hammer. Before Walker can enter the vehicle, he is swarmed with rock aliens which break his helmet open and kill him; his body is dragged away by a much larger alien rock. Anderson launches, but the DoD tells Grey that Anderson is infected, and orders him to abort the rescue or ground communication (without which the CSM will be unable to return to Earth) will be cut off. The lander's engines shut off as it enters orbit; while it is in free fall, small rocks within the craft float in the air, some of which reveal themselves to be rock aliens. Anderson is attacked and infected by the rock aliens, preventing him from controlling the vehicle. Grey warns Anderson that he is approaching too fast, and the footage ends abruptly, implying that the LK and Freedom collided. The film concludes with a statement giving the "official" fate of the astronauts, describing them as having been killed in various jet accidents that left their bodies unrecoverable. An epilogue notes that many of the hundreds of rock samples returned from the previous Apollo missions, given to dignitaries, are now missing. Cast Warren Christie as Lunar Module Pilot Captain Benjamin "Ben" Anderson Lloyd Owen as Commander Nathan "Nate" Walker Ryan Robbins as Command Module Pilot Lieutenant Colonel John “Johnny” Grey Andrew Airlie as CAPCOM (Thomas Young) Michael Kopsa as Deputy Secretary of Defense Production Apollo 18 was shot in Vancouver, British Columbia. However, it has been promoted as a "found footage" film that does not use actors. In an interview with Entertainment Weekly, Dimension Films head Bob Weinstein "balk[ed] at the idea" that the film was a work of fiction, stating that "We didn't shoot anything; we found it. Found, baby!" The Science & Entertainment Exchange provided a science consultation to the film's production team. NASA was also "minimally involved with this