<Li> Brad Garrett as the voice of the Easter Island Head </Li> <Li> Crystal the Monkey as Dexter, a stuffed capuchin monkey </Li> <P> The building featured in the film, which was constructed on a sound stage in Burnaby, British Columbia, is based on the American Museum of Natural History in New York City, external shots of which were used in the movie . </P> <P> Trainers spent several weeks training Crystal, who plays the troublemaking monkey Dexter, to slap and bite Stiller in the film . </P>

Where was the first night at the museum filmed
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