Failing Up: Molly Shannon Signs Development Deal With Fox Molly Shannon is hooking up with 20th Century Fox TV in a rich deal to develop a sitcom for her to produce and star in, according to THR . Shannon was seen most recently in Fox's extremely short-lived Cracking Up , whose abbreviated existence was plagued by feuds between creator Mike White and Fox executives. White (who wrote the screenplay for School of Rock , but is whiffing big-time on TV—Pasadena , anyone?) was fond of throwing fits any time an executive so much as looked at him, and finally quit in a tizzy. Luckily, the ratings weren't good enough for it to matter much. In any event, better luck at Fox this time, Molly!