RUNNING WILDE: A lovable but immature playboy (Will Arnett, R) tries desperately to win (or buy) the heart of his childhood sweetheart (Keri Russell, L), the uber-liberal humanitarian who got away in RUNNING WILDE, the new romantic comedy premiering Tuesday, Sept. 21 (9:30-10:00 PM ET/PT) on FOX. ©2010 Fox Broadcasting Co. Cr: Brian Bowen Smith/FOX