a few more to throw on:

Julio Medim
Deepha Mehta
Tony Gaitlif
David Fincher
Tony Scott (yeah, his brother's put out 3 masterpieces, but Tony's been CONSISTENTLY better)
Werner Herzog
Sam Raimi (I see a few eybrows raising)
the Coen Brothers
Giussepe Tornatore
Chen Kaige
Tsui Hark (the Hong Kong Spielberg...except Tsui hasn't forgotten what fun is)
Errol Morris
Doris Dorrie