I like Schwarzenegger movies. He started weight training at the age of 15.
I didn't know that!  What was his first movie?
His first major role was as Conan in "Conan the Barbarian" in 1982.
Did he ever compete in weight lifting?
Yup he won Mr. Universe at age 20 and won Mr. Olympia 7 times.
Wow!  What was his largest grossing film?
The Terminator movies have been the most successful at the box office. Terminator came out in 1984.
I thought that's probably what it was.  When did he decide to go the political route?
Arnold Schwarzenegger
Arnold Alois Schwarzenegger (; ; born July 30, 1947) is an Austrian-American politician, actor, filmmaker, and former professional bodybuilder. He served as the 38th Governor of California from 2003 to 2011.
Schwarzenegger began lifting weights at the age of 15. He won the Mr. Universe title at age 20 and went on to win the Mr. Olympia contest seven times, remaining a prominent presence in bodybuilding and writing many books and articles on the sport. The Arnold Sports Festival, considered the second most
after losing significant weight to appear in the film "Stay Hungry" with Jeff Bridges. Although significantly taller and heavier, Lou Ferrigno proved not to be a threat, and a lighter-than-usual Schwarzenegger convincingly won the 1975 Mr. Olympia.
Schwarzenegger came out of retirement, however, to compete in the 1980 Mr. Olympia. Schwarzenegger was training for his role in "Conan", and he got into such good shape because of the running, horseback riding and sword training, that he decided he wanted to win