Storyline

Tom (Joseph Gordon-Levitt), greeting-card writer and hopeless romantic, is caught completely off-guard when his girlfriend, Summer (Zooey Deschanel), suddenly dumps him. He reflects on their 500 days together to try to figure out where their love affair went sour, and in doing so, Tom rediscovers his true passions in life.
(500) Days of Summer is presented in a non-chronological format, each scene being introduced by which of the 500 days it is. The plot as given here has been rearranged in chronological order. It is important to note cinematographically that the film opens with day 488, the scene where Tom and Summer are seated at a bench and the audience sees Summer's ringed finger as the two hold hands.