This is a sample list of titles and it is not essential to watch them all:
Oldboy written and directed by Park Chan-Wook, co-written by Chun-hyeong Lim, adapted from story by Garon Tsuchiya and comic by Nobuaki Minegishi
Groundhog Day written and directed by Harold Ramis, co-written by Danny Rubin
Amadeus written by Peter Shaffer and directed by Milos Forman
Let the Right One In written by John Ajvide Lindqvist and directed by Tomas Alfredson
Deliverance written by James Dickey and directed by John Boorman
Hell in the Pacific written by Aledander Jacobs & Eric Bercovici and directed by John Boorman
Psycho written by Joseph Stefano (adapted from Robert Bloch’s novel), and directed by Alfred HItchock
The Apartment written and directed by Billy Wilder, co-written by I.A.L. Diamond
Festen (The Celebration) written and directed by Thomas Vinterberg and co-written by Mogens Rukov
Cyrano de Bergerac written by Jean Paul Rappaneou & Jean-Claude Carriére and directed by Jean Paul Rappaneou
Alien written by Dan O’Bannon and Ronald Shusett and directed by Ridley Scott
Misery written by William Goldman (adapted from S King’s novel) and directed by Rob Reiner
Elephant Man written by Christopher De Vore and David Lynch, directed by David Lynch
Dangerous Liaisons written by Christopher Hampton and directed by Steven Frears
The Warrior written by Tim Miller and Asif Kapadia, and directed by Asif Kapadia
Tell No One written by Guillaume Canet, Phillippe Lefebvre, Harlan Coben and directed by Guillaume Canet, 2006
Rashomon written and directed by Akira Kurosawa and co-written by Shinobu Hashimoto
Memento written by Jonathan & Christopher Nolan. Director Christopher Nolan. 2000.
Bicycle Thieves written and directed by Vittorio di Sica, 1948
The Big Chill written and directed by Lawrence Kasdan, 1983
Breathless written and directed by Jean-Luc Godard. 1960.
Citizen Kane written by Herman J. Mankiewicz & Orson Welles. Directed by Orson Welles. 1941.
Color Purple written by Menno Meyjes. Director Steven Spielberg 1985
Days of Heaven written and directed by Terence Malick. 1978
Elizabeth written by Michael Hurst. Director Shekhar Kapur. 1998.
The General written by Al Boasberg, Clyde Bruckman and Buster Keaton. Director Buster Keaton 1926
Jules et Jim written and directed by Francois Truffaut, 1962
La Grande Illusion written by Jean Renoir and Charles Spaak. Director Jean Renoir, 1937
Land and Freedom written by Jim Allen. Director Ken Loach 1995
North by Northwest written by Ernest Lehman. Director Alfred Hitchcock, 1959.
Taxi Driver written by Paul Schrader. Director Martin Scorcese. 1976.
Thelma & Louise written by Callie Khouri. Director Ridley Scott, 1991
The Truman Show written by Andrew Niccol. Director Peter Weir, 1998.
The Thin Red Line written and directed by Terrence Malick, 1998
The Third Man written by Graham Greene. Director Carol Reed. 1949.
Witness written by Earl W. Wallace and William Kelley. Director Peter Weir, 1985
You Can Count On Me written and directed by Kenneth Lonergan