My Current List:
George Lucas
Andrei Tarkovsky
Wim Wenders
Ingmar Bergman
Agnès Varda
Michael Powell/Emeric Pressburger
Francis Ford Coppola
Terrence Malick
Wojciech Has
Akira Kurosawa
Hayao Miyazaki
Federico Fellini
Sergio Leone
Larisa Shepitko
Alfonso Cuarón
François Truffaut
Jacques Demy
David Lean
Alfred Hitchcock
Ridley Scott
Nancy Meyers
Robert Zemeckis
Martin Scorsese
David Lynch