Gammelion 1968, filmed at Il Castello Roccasinibalda in Rieti, Italy, is a major work in Markopoulos's oeuvre, marking the transition into his late period and anticipating his epic final film, Eniaios 1947-91. Shot with only two rolls of film, the work extends seven minutes of footage to almost one hour of viewing time using hundreds of fades in and out. - Tate Modern