'Cracked Actor' (1975)
Alan Yentob's BBC documentary of Bowie on tour in America, still shocking in its candid portrait of a dazed artist lost in showbiz madness. The most indelible scene: Bowie in the back of his limo, riding through the desert, singing along to Aretha Franklin on the radio while gulping from a carton of milk. "There's a fly floating around in my milk," Bowie says. "That's kind of how I felt [in America]: a foreign body, and I couldn't help but soak it up."