Saul Landau, an Emmy Award-winning documentary filmmaker whose work gave an unprecedented glimpse into Fidel Castro's Cuba, and who co-wrote a riveting account of a Washington assassination linked to Chilean strongman Augusto Pinochet, died Sept. 9 at his home in Alameda, California. He was 77.

The cause was bladder cancer, said his daughter, Valerie Landau.

Part scholar, part journalist and part activist, Landau made more than 30 films and collaborated on over a dozen books, most with an unabashed left-of-center point of view. His films offered inside views of Castro's Cuba, Chile under Marxist leader Salvador Allende and Mexico during guerrilla uprisings in the 1990s.