Officially, Apollo 17, launched December 17th, 1972, was the last manned mission to the moon. But a year later, in December of 1973, two American astronauts were sent on a secret mission to the moon funded by the US Department of Defense. What you are about to see is the actual footage which the astronauts captured on that mission. While NASA denies its authenticity, others say it’s the real reason we’ve never gone back to the moon.

From Dimension Films, producer Timur Bekmambetov, and director Gonzalo López-Gallego comes the sci-fi thriller Apollo 18 and it uses “found footage” to tell the an alternate history story and reveal the real reason why we haven’t traveled back to the moon in some time. Brain-melding aliens! Or something like that. Watch the spooky trailer above and anticipate the Cloverfield-meets-Paranormal Activity flick hitting theatres April 22.