The highly anticipated feature-length Iron Maiden documentary, "Flight 666" is set to open April 21st worldwide. The North American premiere of the film will take place as part of the SXSW film festival on March 18th at the Paramount theater in Austin, TX. The film will air at 7PM, with doors opening at 6:30. Tickets will be sold on a first come, first served basis and will only be available at the theater the day of the show. A movie poster and a video teaser can be viewed below.