Apollo 18 opens in theaters nationwide today, a movie which The Weinstein Company has been touting as a "found footage" thriller, which consists of "actual footage" from a mysterious moon mission that never 'officially' took place, although many conspiracy theorists believe it did.

NASA has now taken its official stance, insisting Apollo 18 is a work of fiction. Here's what NASA spokesperson Bert Ulrich had to say below.

"Apollo 18 is not a documentary. The film is a work of fiction, and we always knew that. We were minimally involved with this picture. We never even saw a rough cut. The idea of portraying the Apollo 18 mission as authentic is simply a marketing ploy. Perhaps a bit of a Blair Witch Project strategy to generate hype."

However, Bert Ulrich does believe that NASA's exposure in projects like Apollo 18 are beneficial for the agency, even if fictional.

"It's a wonderful way to reach the public through these huge media means like feature films and television shows, and it can inspire people in an interesting way, and it also can instruct people about what space exploration is all about."

We'll have to wait until Sunday's Box Office Beat Down to see if the hype pays off in theaters for Apollo 18.