Films beget films. Filmmakers influence other filmmakers constantly. But the most influential filmmaker of all time is Alfred Hitchcock.
Alfred Hitchcock
Donald Spoto
Martin Scorsese
Mark Goldblatt
Eli Roth
John Carpenter
Gary Rydstrom
Bill Pankow
Craig McKay
William Friedkin
Joe Carnahan
Guillermo del Toro
Ruth Myers
Nathan Barr