A portion of this movie is seen in the Quentin Tarantino film, "Pulp Fiction." It is showing on the TV in the hotel room the morning after Butch's boxing match.
The motorcycle gang is actually The Devil's Advocates, not Hell's Angels.
Italian censorship visa # 57164 delivered on 31 October 1970.
Stu Phillips and Bob Stone wrote two songs for this movie- "The Losers" and "Sweet Little Lady".