In the early 1980's, a man named Jack Rebney spent a day with a camera crew making a promotional video to be used as a sales tool for recreational vehicles. To say Rebney was having a bad day would be something of an understatement; unable to remember much of the sales pitch he'd written and showing little patience as he dealt with bugs, hot weather and uncooperative equipment, Rebney spoiled take after take, swearing a blue streak as one thing or another went wrong. The editors of the video created a gag reel in which Rebney's colorful bursts of anger were strung together for comic effect, and the footage amused a small handful of folks involved in the production until 2006. That year, someone posted Rebney's tirade on YouTube, and before long "Winnebago Man" became an internet sensation, with the video racking up over 800,000 views and inspiring a number of parodies and on-line tributes. But who was Jack Rebney, why was he in such a lousy mood, and is he aware of his underground fame today? Filmmaker Ben Steinbauer decided to find out, and his search to locate Rebney and uncover the true story behind his moment of internet infamy is chronicled in the documentary Winnebago Man. Winnebago Man received its world premiere at the 2009 South by Southwest Film Festival.