Frank Pavich’s Jodorowsky’s Dune debuted in the Directors’ Fortnight sidebar in Cannes last year before being acquired by Sony Pictures Classics and playing the fall fest circuit. A trailer has dropped for the documentary about veteran Chilean filmmaker Alejandro Jodorowsky‘s ill-fated attempt to bring Frank Herbert’s seminal sci-fi novel, Dune, to the screen. In the mid-1970s, Jodorowsky (El Topo, Holy Mountain, Santa Sangre) came up with an ambitious take on the tome and spent two years in pre-production. The film was to star Jodorowsky’s own 12-year-old son Brontis alongside Orson Welles, Mick Jagger, David Carradine and Salvador Dali, set to a musical score by Pink Floyd with art design by H.R. Giger and Jean ‘Moebius’ Giraud. But the project ultimately went unrealized and the rights lapsed. David Lynch made his own version of Dune in 1984 with Kyle MacLachlan, Sting and Sean Young. Here’s a look at what might have been: