In 2002, Grint starred in his first non-"Harry Potter" film, "Thunderpants", which revolves around Patrick (played by Bruce Cook) whose remarkable capacity for flatulence scores him a job as an astronaut. In this film, Grint portrayed the co-lead role of Alan, an anosmic boy who is Patrick's only friend. It was generally ignored by critics and audiences alike. Most of the critics that did take notice of "Thunderpants" did not respond well to it, with one writing: "This film should be shown in prisons so that inmates have a good reason to never return." Another film he appeared in was "Driving Lessons", a comedy-drama released in 2006, where he starred opposite Julie Walters. The film was met with a mixed reception by critics, but his portrayal of an oppressed teenaged boy was generally praised. "Grint, on the other hand, is a revelation", who "displays an innate naturalness mixed with personal charisma that turn a potentially pathetic Christian freak into a humorous, thoroughly likable – if more than a little awkward – young man", wrote "Alt Film Guide"'s Andre Soares.