Robert Downey Sr, filmmaker known for films like 'Putney Swope' and 'Greaser's Palace', died aged 85 on Tuesday night after battling Parkinson's disease for years, his son and actor Robert Downey Jr confirmed. Downey Jr shared a post on Instagram, writing, "He was a true maverick filmmaker...According to my stepmom's calculations, they were happily married for just over 2000 years."