However , George Butler and Charles Gaines convinced him to compete one more time so they could make the bodybuilding documentary called Pumping Iron . Schwarzenegger had only three months to prepare for the competition after losing significant weight to appear in the film Stay Hungry with Jeff Bridges . Ferrigno proved not to be a threat , and a lighter than usual Schwarzenegger convincingly won the 1975 Olympia . After being declared Mr. Olympia for a sixth consecutive time Schwarzenegger once again retired from competition . Schwarzenegger came out of retirement once more to compete in the 1980 Mr. Olympia .

Question: what may have happened if Ferrigno had been a fierce threat than he was ?
Answer: Schwarzenegger would certainly have won the 1975 OlympiaNone of the above choices .Schwarzenegger might not have earned the 6th consecutive win tagSchwarzenegger 's final retirement would have still been after the 1980 Olympia