Supermensch: The Legend of Shep Gordon (2013)
Supermensch: The Legend of Shep Gordon is a 2013 American documentary film about talent manager Shep Gordon, directed by Mike Myers. The film is the account of Gordon's career and the outgrowth of a friendship between Myers and Gordon that began in 1991 when Myers was seeking to use a song by Alice Cooper (one of Gordon's earliest clients) in the 1992 film Wayne's World.
More at Wikipedia.