Though his career had its ups and downs, Keaton is recognized today as one of silent cinema’s greatest actors and filmmakers. He is remembered as much for his acrobatic skill as for his trademark deadpan expression, both of which he developed performing in vaudeville as a child and honed over the course of his decades-long career on the silver screen, starring in such classics as The General and Steamboat Bill, Jr. How did Joseph Frank Keaton come to be known as Buster? Discuss