5. The redhead nun from Sister Act isn't actually singing in the movie; she's lip-synching to professional singer Andrea Robinson's voice.
9. Shirley Henderson was in her thirties when she played Moaning Myrtle in Harry Potter and the Chamber of Secrets.
16. New York City's Museum of Natural History actually looks nothing like it does in Night at the Museum.
17. And the Smithsonian has a totally different layout and doesn't have 19 floors of underground storage like it does in Night at the Museum: Battle of the Smithsonian.
18. Finally, Julia Roberts's head was photoshopped onto her body double's body for the Pretty Woman poster.
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