After they reconcile, Eli gets the idea to re-create the prom experience Auden missed out on. He convinces her to put on her never-worn prom dress and takes her to the beach, where their friends surprise her with a "beach bash"-themed prom under the pier.
It's a flipped version of what happens in the book, in which Heidi is planning Colby's annual Beach Bash on the boardwalk and decides to make it prom-themed. Jason asks Auden to go as an apology for ditching her at their real prom, but after he stands her up again (unbelievable), Auden asks Eli. He turns her down without explanation, and Auden plans to stay home and take care of Thisbe. When her mom shows up to help, she bikes down to the boardwalk and runs into Eli, who tells her that he turned her down to compete in one final BMX contest. He offers her a ride to the boardwalk, but she hops back on her bike and tells him she'll meet him there. In the book, Eli retires after this last contest and starts taking classes at the U, allowing the couple to stay close to each other; at the end of the movie, they're in a long-distance relationship.
