JENNY McCARTHY plays Sarah Darling, a world-weary actress reluctantly cast as Candy the Chick in "Stab 3." "Sarah wants respect, and she's not getting it," laughs McCarthy. "I like her because she's got spirit and spunk." McCarthy was the former host of the MTV series "Singled Out" and "The Jenny McCarthy Show." She recently finished filming Miramax's "Diamonds" with Kirk Douglas, Lauren Bacall, and Dan Aykroyd. Other film credits include "Things to Do in Denver When You're Dead" opposite Andy Garcia and Christopher Walken, and "The Stupids" with Tom Arnold.