I have not seen three films by the following directors (in some cases the director hasn't even made three films):
Chantal Akerman
Allison Anders
Michelangelo Antonioni
Gregg Araki
Dario Argento
George Armitage
Jack Arnold
Miguel Arteta
Dorothy Arzner
Olivier Assayas
Jacques Audiard
Shona Auerbach
Roger Avary
Lloyd Bacon
Carroll Ballard
Drew Barrymore
László Benedek
Roberto Benigni
Busby Berkeley
Larry Bishop
Noel Black
Shane Black
Neill Blomkamp
Budd Boetticher
Richard Boleslawski
John Boorman
Frank Borzage
Zach Braff
John Brahm
Robert Bresson
Craig Brewer
James Bridges
Matthew Bright
Tod Browning
Luis Bunuel
Harold S. Bucquet
Patricia Cardoso
John Carney
Niki Caro
Alexandra (Xan) Cassavettes
John Cassavetes
William Castle
Claude Chabrol
Gurinder Chadha
Gordon Chan
Charlie Chaplin
Larry Charles
Mark Christopher
Michael Cimino
Rene Clair
Robert Clampett
James Clavell
Henri-Georges Clouzot
Nigel Cole
Merian C. Cooper
Roman Coppola
James Cox
John Cromwell
David Cronenberg
Alan Crosland
Lee Daniels
Jules Dassin
Delmer Daves
Terence Davies
Desmond Davis
Tamra Davis
Vittorio De Sica
Guillermo Del Toro
Cecil B. DeMille
Jacques Demy
Claire Denis
Maya Deren
Kirby Dick
Edward Dmytryk
Andrew Dominik
Carl Th. Dreyer
Allan Dwan
Sergei Eisenstein
Emilio Estevez
Chris Eyre
Rainer Werner Fassbinder
Federico Fellini
Terence Fisher
James A. FitzPatrick
Robert J. Flaherty
Anne Fletcher
Tom Ford
Bob Fosse
Jodie Foster
Jesus Franco
Su Friedrich
Stephen Fry
Cary Fukunaga
Samuel Fuller
Vincent Gallo
Rodrigo Garcia
Costa-Gavras
Jean-Luc Godard
Bobcat Goldthwait
Josh Gordon and Will Speck
David Greene
Clark Gregg
D.W. Griffith
Paul Haggis
Randa Haines
Hal Hartley
Don Hartman
Henry Hathaway
Brian Henson
Jim Henson
George Hickenlooper
John Hillcoat
P.J. Hogan
Agnieszka Holland
Todd Holland
Dennis Hopper
Willard Huyck
Kon Ichikawa
Eric Idle
Ub Iwerks
Luc Jacquet
Rian Johnson
Gregor Jordan
Gil Junger
Mikhail Kalatozov
Ross Katz
Buster Keaton
Gene Kelly
Robert Kenner
Abbas Kiarostami
Krzysztof Kieslowski
Henry King
Michael Patrick King
Alexander Korda
Stanley Kramer
Wayne Kramer
Mitchell Leisen
Brett Leonard
Herschell Gordon Lewis
Jerry Lewis
Frank Lloyd
Kenneth Lonergan
Ida Lupino
Alexander Mackendrick
Sharon Maguire
Terrence Malick
Louis Malle
Anthony Mann
Chris Marker
James Marsh
Neil Marshall
Arthur Maude
Archie Mayo
Jim McBride
Martin McDonagh
Adam McKay
John McNaughton
James McTeigue
Jordan Melamed
Russ Meyer
Lewis Milestone
John Milius
Frank Miller
Rebecca Miller
John Cameron Mitchell
Hayao Miyazaki
Kenji Mizoguchi
Errol Morris
F.W. Murnau
Ryan Murphy
Hal Needham
Tim Blake Nelson
Fred Niblo
Marcel Ophüls
Max Ophüls
Nagisa Oshima
Yasujiro Ozu
G.W. Pabst
Gordon Parks
Pawel Pawlikowski
Sam Peckinpah
Arthur Penn
Tyler Perry
Brad Peyton
Frank Pierson
H.C. Potter
Michael Powell
Otto Preminger
Emeric Pressburger
Alex Proyas
Michael Radford
Irving Rapper
Satyajit Ray
Carol Reed
Kelly Reichardt
Max Reinhardt
Karel Reisz
Jean Renoir
Alain Resnais
Tony Richardson
Jacques Rivette
Hal Roach
Nicolas Roeg
Eric Rohmer
Mark Romanek
George Romero
Stuart Rosenberg
Francesco Rosi
Benjamin Ross
Gary Ross
Roberto Rossellini
Robert Rossen
Alan Rudolph
Ken Russell
Carlos Saura
Franklin J. Schaffner
Julian Schnabel
Paul Schrader
Liev Schreiber
Robert Schwentke
Jake Scott
Ousmane Sembene
Sidney Sheldon
Don Siegel
Floria Sigismondi
Tarsem Singh
Robert Siodmak
Douglas Sirk
Victor Sjostrom (Seastrom)
Jack Smight
Zack Snyder
Todd Solondz
John Sturges
Preston Sturges
Kevin Sullivan
Jorma Taccone
Frank Tashlin
Jacques Tati
Bertrand Tavernier
Giuseppe Tornatore
Robert Towne
Phil Traill
Marco Tullio Giordana
John Turturro
Matt Tyrnauer
Edgar G. Ulmer
Kinka Usher
Roger Vadim
Agnes Varda
Matthew Vaughn
Charles Vidor
King Vidor
Josef Von Sternberg
Erich Von Stroheim
Randall Wallace
Raoul Walsh
Charles Walters
Marc Webb
William A. Wellman
Lina Wertmuller
James Whale
Frank Whaley
Robert Wiene
Gene Wilder
Frederick Wiseman
Ed Wood
Yoji Yamada
Terry Zwigoff
I have seen three films by the following directors, but they aren't all in The Auteurs' database:
Jim Abrahams
Andrew Adamson
Paul W.S. Anderson
Gillian Armstrong
John G. Avildsen
John Badham
Harold Becker
Bruce Beresford
Peter Berg
Richard Brooks
Clarence Brown
Martin Campbell
Jackie Chan
George Clooney
Frank Coraci
Kevin Costner
John Dahl
Rod Daniel
Julie Dash
Jan De Bont
Ted Demme
William Dieterle
David Frankel
Friz Freleng
William Friedkin
Mel Gibson
Raja Gosnell
Taylor Hackford
Alexander Hall
Catherine Hardwicke
Renny Harlin
Amy Heckerling
Brian Helgeland
Walter Hill
Michael Hoffman
Henry Koster
Ken Kwapis
Mimi Leder
Robert Z. Leonard
Mervyn LeRoy
Anatole Litvak
Delbert Mann
Garry Marshall
Paul Mazursky
McG
Nancy Meyers
Rob Minkoff
Mike Mitchell
Gabriele Muccino
Robert Mulligan
Donald Petrie
Peyton Reed
Carl Reiner
Brian Robbins
Don Roos
Mark Rydell
Brad Silberling
John Singleton
Penelope Spheeris
Andy Tennant
Jacques Tourneur
Gary Trousdale
Anand Tucker
Jon Turteltaub
Kirk Wise
