Christie began his career as a theatre comedian, but he quickly transitioned to film. He directed his first film in 1910, and over the next two decades he would direct over 250 films. His most notable films include:
* The Battle of the Sexes (1914)
* The Freshman (1925)
* The Collegian (1927)
* The Great Gabbo (1929)
* Fighting Caravans (1931)
In addition to his work as a film director, Christie also produced several television series, including:
* The George Burns and Gracie Allen Show (1950-1958)
* My Little Margie (1952-1955)
* The Life of Riley (1953-1958)
Christie was a pioneer of the film industry, and his contributions helped to shape the way that movies are made today. He was a master of comedy and drama, and his work continues to be enjoyed by audiences around the world.