(500) Days of Summer

The romantic comedy is a genre as propagandistic as any World War II-era flag-waver. That's understandable, given how rom-coms are about indulging moviegoers' lovesick fantasies, not rubbing their figurative faces in the dirty reality of relationships. That's why you've got to admire a picture as cheerfully impish as "(500) Days of Summer" and the zeal with which it both embraces and undermines the many clich