Amateur and professional bodybuilders prepare for the 1975 Mr. Olympia and Mr. Universe contests as five-time champion Arnold Schwarzenegger defends his Mr. Olympia title against Serge Nubret and the shy young Lou Ferrigno. Arnold Schwarzenegger, Lou Ferrigno, Mike Katz, Franco Columbu, Serge Nubret, Ed Corney, Ken Waller Added on stan 2023-05-21.