The film with the second-greatest impact?

1977sStar Wars, of course.

In third place: Alfred Hitchcocks 1960 thrillerPsycho.

THE WIZARD OF OZ

Credit: Mary Evans/MGM/Ronald Grant/Everett Collection

When it came to ranking directors, the study looked at a couple different metrics.

Another golden age filmmaker who is credited on both those films, Victor Fleming, was No.

3, Mervyn LeRoy was No.

4 and Steven Spielberg was No.

Jackson was followed by Clint Eastwood, Tom Cruise, Arnold Schwarzenegger and John Wayne.