Tom: Paul, seriously...
Paul: Did you bang her?
Paul: Blow job?
Paul: Hand job?
Tom: No, Paul, no jobs. I'm still unemployed. We just kissed.
Tom receives an e-mail from Summer on day (303). At the beginning of the movie we are told that Tom and Summer met on January 8, so day 303 should be November the 6th, but the e-mail says that it was sent on May 7th, which is day 120.