This is a somewhat better list that the BFI 100 Greatest Movies list. Dr. Strangelove, Kes, and La cienaga are all great movies that make my list, which is of course the definitive list.
2001: A Space Odyssey, 1968, Kubrick
Citizen Kane, 1941, Welles
The Godfather, 1972, Coppola
Tokyo Story, 1953, Ozu
Jeanne Dielman, 23 quai du Commerce 1080 Bruxelles, 1975, Akerman
8 1/2, 1963, Fellini
Vertigo, 1958, Hitchcock
Mirror, 1974, Tarkovsky
Persona, 1966, Bergman
Close-Up, 1990, Kiarostami
In the Mood for Love, 2000, Wong
Barry Lyndon, 1975, Kubrick
Taxi Driver, 1976, Scorsese
Stalker, 1979, Tarkovsky
Breathless, 1960, Godard
Seven Samurai, 1954, Kurosawa
Beau travail, 1988, Denis
A Woman Under the Influence, 1974, Cassavetes
Apocalypse Now, 1979, Coppola
Rashomon, 1950, Kurosawa
Bicycle Thieves, 1948, De Sica
Raging Bull, 1980, Scorsese
The Battle of Algiers, 1966, Pontecorvo
Pather Panchali, 1955, Ray
Mulholland Drive, 2001, Lynch
The Godfather Part II, 1974, Coppola
Andrei Rublev, 1966, Tarkovsky
GoodFellas, 1990, Scorsese
Do the Right Thing, 1989, Lee
Ordet, 1955, Dreyer
The Passion of Joan of Arc, 1927, Dreyer
Man with a Movie Camera, 1929, Vertov
The 400 Blows, 1959, Truffaut
Sunrise: A Song of Two Humans, 1927, Murnau
La jetee, 1962, Marker
La dolce vita, 1960, Fellini
Au hasard Balthazar, 1966, Bresson
La strada, 1943, Fellini
L’avventura, 1960, Antonioni
La regle du jeu, 1939, Renoir
Come and See, 1985, Klimov
Vagabond, 1985, Varda
A Man Escaped, 1956, Bresson
The Night of the Hunter, 1955, Laughton
Play Time, 1967, Tati
Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb, 1963, Kubrick
Don’t Look Now, 1973, Roeg
One Upon a Time in the West, 1968, Leone
Le mepris, 1963, Godard
L’atalante, 1934, Vigo
Psycho, 1960, Hitchcock
Viridiana, 1961, Bunuel
Eraserhead, 1976, Lynch
La notte, 1961, Antonioni
Fanny and Alexander, 1984, Bergman
La maman et la putain, 1973, Eustache
Ali: Fear Eats the Soul, 1974, Fassbinder
The Piano, 1992, Campion
City Lights, 1931, Chaplin
Cleo from 5 to 7, 1962, Varda
Singin’ in the Rain, 1951, Donen
La cienaga, 2011, Martel
Lawrence of Arabia, 1962, Lean
Jaws, 1975, Spielberg
Tropical malady, 2004, Weerasethakul
Satantango, 1994, Tarr
Sunset Blvd., 1950, Wilder
Blade Runner, 1982, Scott
Some Like It Hot, 1959, Wilder
Late Spring, 1949, Ozu
Meshes of the Afternoon, 1943, Deren
Kes, 1969, Loach
A Separation, 2011, Farhadi
Salo, or the 120 Days of Sodom, 1975, Pasolini
The Conversation, 1974, Coppola
L’argent, 1983, Bresson
Where Is the Friend’s House, 1987, Kiarostami
Ikiru, 1952, Kurosawa
Chinatown, 1974, Polanski
The Seventh Seal, 1957, Bergman
The Ascent, 1976, Shepitko
Wild Strawberries, 1957, Bergman
Blue Velvet, 1986, Lynch
The Spirit of the Beehive, 1973, Erice
A Brighter Summer Day, 1991, Yang
Modern Times, 1936, Chaplin
The Red Shoes, 1948, Powell & Pressburger
Touki Bouki, 1973, Mambéty
Sans soleil, 1982, Marker
News from Home, 1976, Akerman
Shoah, 1985, Lanzmann
The Searchers, 1956, Ford
Throne of Blood, 1957, Kurosawa
Eternal Sunshine of the Spotless Mind, 2004, Gondry
Hidden, 2004, Haneke
Taste of Cherry, 1997, Kiarostami
Pickpocket, 1959, Bresson
The Colour of Pomegranates, 1968, Parajanov
The Conformist, 1970, Bertolucci
Parasite, 2019, Bong
Yi Yi, 1999, Yang
Moonlight, 2016, Jenkins
Battleship Potemkin, 1915, Eisenstein
Wanda, 1970, Loden