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?
He served 2 terms as Governor of California from 2003 to 2011.