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1.
Critically panned and Major Flop film starring Severus Snape when he hijacks a plane with 6 other clones, terrifying and traumatizing the passengers. A rip off of Snakes On A Plane.

Obviously a sequel was made direct-to-dvd with a budget of £5 and starring porn star Ginny Weasley which is considered the worst film of all time.
Guy: This is worse than Snapes On A Plane
Guy #2: OMG don't get me started
by poopooweeweesnot November 01, 2011