Do yourself a favor--go see 500 Days of Summer. Don't go expecting great art or a lasting message or a life-changing event. Just go ready to laugh and commiserate. Admire Zooey Deschanel's crazy blue eyes and fabulous dresses. Wonder why Joseph Gordon-Levitt wears one pair of shoes into a party and another pair out.
At matinee prices, the could-have-been-cheesy-but-turns-out-delightful scene where Joseph dances down the street is worth the price of the ticket.
Overlook the convenient ending.