Big Time Adolescence is a 2019 American coming-of-age comedy film directed by Jason Orley in his feature film debut. The film stars Griffin Gluck, Thomas Barbusca, Sydney Sweeney, Oona Laurence, and Pete Davidson. It had its world premiere at the 2019 Sundance Film Festival on January 27, 2019.

Griffin Gluck stars as a teenage boy who starts hanging out with his older sister's boyfriend, played by Pete Davidson, much to her chagrin. The two form a bond over their shared love of drugs, alcohol, and general mischief. As the two get closer, the teenager starts to emulate his older friend's bad behavior.
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