The Appetizer Katie has lofty career aspirations that seem to change almost hourly: writer, film director, teacher, educational psychiatrist. In the meantime, she's waiting tables and waiting for "Mr. Right" to arrive out of the blue -- which seems unlikely, considering her romantic track record is as pitiful as her job history. The Main Course Still, a girl can dream, even when she's rushing a hot plate of linguini over to the nasty customer at...