Monkey steals the show in 'The Hangover Part II'

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PHOENIX -- It looks like "The Hangover Part II' set a new record for comedy debuts with an opening weekend of nearly $106 million.

The movie stars Bradley Cooper, Zach Galifianakis, Ed Helms and Justin Bartha, but one other performer upstaged them all. Her name is Crystal, and she's a capuchin monkey.

Tara Hitchcock got inside her head -- actually Crystal got on Hitchcock's head -- when she chatted with animal trainer Tom Gunderson.

According to Gunderson, the most difficult thing in getting Crystal ready to shoot the movie was teaching her to look like she was smoking. The trainer was quick to point out that the cigarette was ceramic and the smoke was added with special effects.

"We did not train her to smoke," he said. "I would never moralistically train an animal to smoke."

According to Gunderson, Crystal, who is 17 years old, doesn't even like smoke from a campfire.

"The Hangover Part II" is rated R and is in theaters now.