Hollywood Costume Designer Exposes 'Vile' Beloved A-listers' Behind-the-Scenes Behavior — Including 'Crude' Kirstie Alley and 'Unhappy' Shannen Doherty

Jean-Pierre Dorléac claimed Cheers alum Kirstie Alley was 'a constant mess,' and Charmed star Shannen Doherty concocted a plan to ruin a movie she despised.