Well, to cut through the crap here is the autoritive list of the best movies ever
Cinema Paradiso (Giuseppe Tornatore 1988)
Fanny & Alexander (Ingmar Bergman 1982)
Smiles of a summer night (Bergman 1955)
The Godfather (I and II in particular) (Francis Ford Coppola 1972-)
LA Confidential (Curtis Hanson 1997, based on the novel by James Ellroy, the King of crime noir)
Battleship Potempkin (Sergei Eisenstein 1925)
Metropolis (Fritz Lang 1927)
Down By Law (Jim Jarmush 1986)
Pulp Fiction (Quentin Tarantino 1994)
Lock, Stock, and Two Smoking Barrels (Guy Ritchie 1998)
Das Boot (Wolfgang Petersen 1981, terrific movie, especially for those who did their service on a submarine)