We're All Going to the World's Fair is a 2021 American coming-of-age psychological horror film written, directed, and edited by Jane Schoenbrun in their narrative feature directorial debut. The film stars Michael J. Rogers and Anna Cobb in her feature film debut. David Lowery served as an executive producer. The film follows Casey (Cobb), a teenage girl who takes the "World's Fair Challenge" and documents the mental and physical changes that it causes her.