My Sister's Keeper

Credit: Gregg DeGuire/WireImage

Cameron Diaz Plays Iron Chef for Costars

Originally posted 06/26/2009 09:25AM

She surfs. She acts. And Cameron Diaz makes a really mean chili cheese fry.

In her latest movie, My Sister’s Keeper, Diaz plays onscreen mom to Little Miss Sunshine Oscar-nominated actress Abigail Breslin, CSI: Miami's Evan Ellingson and Medium's Sofia Vassilieva. During production, the role continued off screen, too, when Diaz cooked lunch for them in her trailer.

"I made them guacamole and chili cheese fries and fajitas," Diaz, 36, told PEOPLE at Wednesday night's premiere of the film, based on novelist Jodi Picoult's bestseller about a young girl who sues her parents.

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