Films used in Christian Marclay's The Clock, the world's longest supercut.

The Clock uses excerpts from throughout film and television history. Television series aren't listed here, but the ones I know of are: 24, Agatha Christie's Marple, Alfred Hitchcock Presents, The Avengers, Breaking Bad, Captain Scarlet and the Mysterons, Columbo, Dexter, ER, Extras, Matlock, Mission: Impossible, Murder Rooms: Mysteries of the Real Sherlock Holmes, The Office (UK), Prison Break, The Prisoner, Quantum Leap, Sex and the City, Suspicion, The Twilight Zone (original series and 1980s revival), Twin Peaks, The Wire, and The X-Files.

This list mostly comes from The Clock Wiki and isn't comprehensive, but additions are welcome.