Kate Beckinsale has reportedly demanded a body double for her latest film - because she feels self-conscious about the size of her bottom.

The slim star, 34, allegedly refused to bare her derrière while shooting a shower scene in new movie Whiteout - forcing producers to hire a $2,000 -a-day model to stand in for the star.

A source tells Britain's The Mail On Sunday, "The script called for her character to be filmed nude in a shower, focusing in on her bottom and thighs. Kate insisted on a double being hired. She was quite open on the set about not liking her body and said she particularly loathed her bottom and was not comfortable baring it."

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(This news article provided by World Entertainment News Network)