As a filmmaker, Mekas' own output ranged from his early narrative film ("Guns of the Trees", 1961) to "diary films" such as "Walden" (1969); "Lost, Lost, Lost" (1975); "Reminiscences of a Journey to Lithuania" (1972), "Zefiro Torna" (1992), and "As I Was Moving Ahead Occasionally I Saw Brief Glimpses of Beauty", which have been screened extensively at festivals and museums around the world.