It has been heralded as one of the landmark films of all time - but has anyone ever watched it?

Andy Warhol's three-and-a-half hour epic The Chelsea Girls, blamed as the inspiration behind reality TV, has been voted into the top 100 most influential films.

The 1967 film, shot on location in eight rooms of New York's notorious Chelsea Hotel, features Warhol's glamorous entourage conducting their daily lives as a narcissistic show for the camera.

"Andy Warhol's underground film is to blame for reality television," according to the Radio Times Guide to Film 2007, out today.

The guide cites The Beatles' 1964 A Hard Day's Night as the first pop video. Cult Seventies porn film Deep Throat, starring Linda Lovelace, is on the list. The guide says it "took pornography out of the shadows and into the cinemas". The oldest film listed is 1902 classic Le Voyage dans la Lune, by pioneering film-maker Georges Melies.

Radio Times film editor Andrew Collins says: "This is not a list of the greatest movies ever made. This is a chronological journey pinpointing those films that changed the course of the industry, for better or worse."

Other great movie landmarks

1902 Le Voyage dans la Lune
"Masterpiece of early cinema"
1925 The Gold Rush "Seminal Chaplin movie"
1927 It "Clara Bow - the first 'It' girl"
1932 Scarface "Gangster film came of age"
1955 Rebel Without A Cause "Brought youth and angst to a territory previously inhabited by Bogart"
1960 Psycho "Revolutionary in plot and promotion"
1967 Bonnie and Clyde
"Milestone of film violence"
1982 Tron One of the earliest films based on a video game
1993 Jurassic Park "All-time great" spectacle
2005 Brokeback Mountain "Possibly the first film of a gay-specific narrative fully to transcend its subject matter"