Continuity mistake: Charlie has set up a "security system" on the right side of the bed. When a double slaps Lindsay's hand, she goes over to a chair on the right side of the bed and the security system has vanished completely. It reappears when she returns to bed.
Scary Movie 5 (2013)
1 continuity mistake - chronological order
Directed by: Malcolm D. Lee
Starring: Charlie Sheen, Lindsay Lohan, Ashley Tisdale, Simon Rex
Revealing mistake: When Charlie and Lindsay are having sex, almost when they're done, a horse gets into the bed. The horse disappears too soon.
Lindsay Lohan: I'm gonna blow you across the room.
Charlie Sheen: Sounds awesome.