I really enjoyed this film. I've always admired Dunne from the 1990s but I didn't know much about his early life and career. I had heard his daughter was murdered, but not a lot of the details of that crime. Lots of interesting film clips of Hollywood during the 1940s--1970s and lots of famous faces, great shots of glamour, clothes, etc.
He was unstinting in telling all the things he did that were not so great, but you get the impression that he was a loving father (unlike his own father).
I've read most of his books/articles which are the 'insider's' peek at tinsel town both (thinly veiled) fiction and non fiction. It's very hard not to feel sorrow for the tragedies he's endured (besides losing his daughter his wife suffered multiple sclerosis and passed away), yet he kept on working and working until his death at 84. I really like it. If you enjoy the history of Hollywood you might enjoy it too.