The director behind our favorite Lady Gaga and Britney Spears music videos has finally released the trailer to his insane time-traveling, spaceship-flying slasher flick Detention. Watch as the serial killer "Cinderhella" thins out the High School herd.

Thanks to MTV we now have a trailer of this bloody little flick. For more images and information on Detention, check out our exclusive interview with Kahn, in which he calls this movie the "Citizen Kane of Asian nerd in love with black girl movies."

Watch the trailer in HD over at MTV.