These are the 25 movie classics everyone should see, according to the experts.
The Radio Times has drawn up a list of celluloid masterpieces designed as a "crash course" for the aspiring film buff.
They include Casablanca, Rear Window, High Noon and Bonnie and Clyde.
But there are also more surprising inclusions sure to spark debate - among them the 1998 blockbuster Armageddon.
The Jerry Bruckheimer hit, which featured Bruce Willis and Ben Affleck battling to save the world from a giant asteroid, made US$500 million at the worldwide box office but was derided by critics.
However, Radio Times film editor Andrew Collins, who compiled the list, said: "Snobbery does not belong to the film buff.
"To understand the 1980s/1990s blockbuster, you must accept producer Jerry Bruckheimer into your life. Armageddon is the pinnacle of Bruckheimer excess."
The oldest entry on the list is 1919 German silent movie The Cabinet of Dr Caligari.
Quentin Tarantino's Pulp Fiction is included, along with Cary Grant screwball comedy Bringing Up Baby, Seventies horror The Hills Have Eyes and cult Mick Jagger film Performance.
The list also features Salvador Dali's 16-minute surrealistic film Un Chien Andalou and nine-hour Holocaust documentary Shoah.
And there is also a place for Heaven's Gate - the biggest flop in cinema history.
Directed by Michael Cimino, it cost 40 million to make and made just 3.4 million at the US box office.
Collins described the film as an "ambitious, lengthy, grainy western epic", adding: "It's possible to enjoy it despite knowledge of the budget and chaos going on behind the camera."
The list was compiled to mark this Sunday's relaunch of Film Four as a free-to-air channel.
The full feature is in this week's Radio Times, on sale tomorrow.
