Performance artist Miranda July hits a grand slam as the writer, director and star of her first film. It's a moonbeam romance laced with startling wit and gravity. July plays Christine, a video artist who earns money by driving an elder-cab and sees shoe salesman Richard (John Hawkes) as relationship material, even though he set his hand on fire when his wife left him. Richard has two sons: Robby (Brandon Ratcliff), 7, who chats up adult women on the Internet using his own personal fixation with