The film does not have a traditional plot twist, but the resolution of the character arcs constitutes the 'reveal'. After hours of conflict, the group smokes marijuana (except for the scene where Bender sacrifices himself to protect them, earning their respect). This leads to a raw emotional confession circle.
The Ending Pairs: Unexpected romances form: Claire kisses Bender and gives him one of her diamond earrings; Andrew kisses Allison (post-makeover). Brian remains single but writes the essay.
The Final Essay: Instead of writing what Vernon asked, Brian writes a letter stating that Vernon's judgment of them is wrong. He asserts that each of them is 'a brain, and an athlete, and a basket case, a princess, and a criminal.' The film ends with Bender walking across the football field and thrusting his fist into the air—a symbol of triumph over the social hierarchy.