I don't really pay attention to studios, but here are some of my favorite directors:
Ridley Scott: Alien, Blade Runner, Black Rain, Thelma & Louise, Gladiator, Matchstick Men. Heck, I even thought
G.I. Jane was pretty watchable.
Wong Kar Wai: As Tears Go By, Days of Being Wild, Chungking Express, Fallen Angels, In the Mood for Love, 2046.
Stephen Frears: My Beautiful Laundrette, Prick Up Your Ears, Sammy and Rosie Get Laid, Dangerous Liaisons, The Grifters, The Snapper, The Van, High Fidelity, Dirty Pretty Things.
David Cronenberg: Videodrome, The Dead Zone, The Fly, Dead Ringers, Naked Lunch, Crash, Spider, A History of Violence.
James Cameron: The Terminator, Aliens, The Abyss, Terminator 2, True Lies.
Peter Weir: Gallipoli, The Year of Living Dangerously, Witness, Dead Poets Society, Master and Commander.
Christopher Nolan: Following, Memento, the remake of
Insomnia, Batman Begins.
Gus Van Sant: Drugstore Cowboy, My Own Private Idaho, To Die For, Good Will Hunting, Finding Forrester. I haven't seen
Elephant yet.
Guillermo del Toro: Mimic, Blade II, Hellboy, Pan's Labyrinth.
Terry Gilliam: Time Bandits, Brazil, The Adventures of Baron Munchausen, The Fisher King, Twelve Monkeys, Fear and Loathing in Las Vegas. I haven't seen
The Brothers Grimm or
Tideland, but they're both in my Netflix queue.
Jim Sheridan: In the Name of the Father, The Boxer, In America.
Paul Thomas Anderson: Boogie Nights, Magnolia, Punch-Drunk Love.
Wes Anderson: Bottle Rocket, Rushmore, The Royal Tennenbaums.
The Life Aquatic with Steve Zissou is somewhere in my Netflix queue.
Steven Spielberg: Christ, can I even list them all?
Jaws, Close Encounters of the Third Kind, Raiders of the Lost Ark, E.T., Empire of the Sun, Jurassic Park, Schindler's List, Saving Pvt. Ryan, A.I., Munich.
Steven Soderbergh: Sex, Lies, and Videotape, Out of Sight, The Limey, Erin Brockovich, Traffic, Ocean's Eleven, Ocean's Twelve.
Joel & Ethan Coen: Raising Arizona, Fargo, The Big Lebowski, O Brother, Where Art Thou?. I'm way behind on them. Still lots to see.
Pedro Almodovar, Todd Haynes, Quentin Tarantino, Michael Winterbottom, Spike Jonze, Ang Lee, David Fincher, David Lynch, Hayao Miyazaki, Jean-Pierre Jeunet, Kathryn Bigelow...