Winnebago Man is a 2009 American documentary film directed by Ben Steinbauer. The film depicts the unexpected fame of Jack Rebney, whose profane outbursts from a Winnebago sales video turned him into an internet phenomenon known as 'The Angriest Man in the World'. Filmmaker Ben Steinbauer sets out to track down the reclusive Rebney, providing insight into the origins and impact of the viral outtakes.