In 1997, Mitchell made his big screen debut in "Good Burger", playing Ed, a sweet and simpleminded surfer dude who works at the titular fast food restaurant. A popular character on "All That", Ed was paired in the successful film with Kenan Thompson's Dexter, a lazy schemer forced to work at Good Burger who joins the well-meaning but impossibly dimwitted Ed in a quest to save the stand from a flashy cutthroat competitor. Mitchell showcased not only his capable acting skills and well-timed physical comedy in the film, but wrote and performed the movie's theme song "We're All Dudes", Ed's catchy homage to the unity of humankind. His next foray into film was the comedy "The Mystery Men" (1999), about a group of lesser known superheroes with odd powers.