Trying to choose Arnold Schwarzenegger‘s best look is like trying to pick his best movie one-liner. His physique has undergone so many changes over the years, each one awesome in its own way, that it becomes the proverbial apples vs. oranges debate.

But many bodybuilding pundits agree that Arnold’s peak shape—onstage, anyway—came at the 1974 Mr. Olympia, a year prior to the contest filmed for the movie Pumping Iron (which casual fans usually assume was Arnold’s most impressive showing).

More than 45 years later, we look back at how Arnold’s physique has followed his amazing career, changing for contests, movies, and the demands of a life as public as any ever lived.