"(500) Days of Summer" is a movie that is, in part, about romantic clichés.
The main protagonist, Tom, is a big believer in said clichés. He searches endlessly for "the one", and thinks that he has found her in Summer, a girl who ends up working with him at a greeting card company. Summer is beautiful, charming, and fun, and Tom finds himself utterly infatuated as soon as they meet.
This is the beginning portion of the film, and at…