The National Society of Film Critics put out a book in 2005 called “The X List.” These were the 80 films listed in the book, sorted chronologically:

Pandora's Box 1929
Morocco 1930
The Mummy 1932
Shanghai Express 1932
Trouble in Paradise 1932
Baby Face 1933
Ecstasy 1933
The Song of Songs 1933
It Happened One Night 1934
Tarzan and His Mate 1934
Wuthering Heights 1939
Rebecca 1940
Ossessione 1943
Laura 1944
Gilda 1946
Carmen Jones 1954
Picnic 1955
Baby Doll 1956
Horror of Dracula 1958
The Long, Hot Summer 1958
Eyes Without a Face 1959
Hercules 1959
Black Sunday 1960
Hercules Unchained 1960
Peeping Tom 1960
Splendor in the Grass 1961
Bye Bye Birdie 1963
Contempt 1963
Secretary 1963
Persona 1966
Belle De Jour 1967
Frankenstein Created Woman 1967
Butch Cassidy and the Sundance Kid 1969
Beyond the Valley of the Dolls 1970
The Garden of the Finzi-Continis 1970
Klute 1971
McCabe & Mrs. Miller 1971
Behind the Green Door 1972
Deep Throat 1972
Last Tango in Paris 1972
Don't Look Now 1973
Shampoo 1975
In the Realm of the Senses 1976
Young Lady Chatterley 1977
Days of Heaven 1978
Talk Dirty To Me 1980
Body Heat 1981
The Makioka Sisters 1983
A Nos Amours 1984
Crimes of Passion 1984
Blue Velvet 1986
The Unbearable Lightness of Being 1988
The Fabulous Baker Boys 1989
La Femme Nikita 1990
Basic Instinct 1992
The Last of the Mohicans 1992
Poison Ivy 1992
The Age of Innocence 1993
Crash 1996
Irma Vep 1996
Ayn Rand: A Sense of Life 1997
The Tango Lesson 1997
Great Expectations 1998
Eyes Wide Shut 1999
Forever Mine 1999
Baise-Moi 2000
In the Mood For Love 2000
O Fantasma 2000
Intimacy 2001
Mulholland Drive 2001
Y Tu Mama Tambien 2001
Femme Fatale 2002
Irreversible 2002
Laurel Canyon 2002
In the Cut 2003
Twentynine Palms 2003
Anatomy of Hell 2004
Bad Education 2004
Kinsey 2004
Troy 2004