Wdixon · CC BY-SA 4.0

Robert Downey Sr. made his name with Putney Swope, a 1969 underground satire of Madison Avenue advertising shot on a minimal budget, and followed it with the surrealist Western Greaser's Palace. Film scholars have described his 1960s work as take-no-prisoners countercultural filmmaking, made with almost no money and outsized ambition; he was the father of actor Robert Downey Jr.