
Dominick John Dunne (October 29, 1925 – August 26, 2009) was an American writer, investigative journalist, and producer. He began his career as a producer in film and television, noted for involvement with the pioneering gay film The Boys in the Band (1970) and the award-winning drug film The Panic in Needle Park (1971). He turned to writing in the early 1970s. After the 1982 murder of his daughter Dominique, he came to focus on the ways in which wealth and high society interacts with the judicial system. A frequent contributor to Vanity Fair, Dunne, from the 1980s, also appeared regularly on television discussing crime.
Description above from the Wikipedia article Dominick Dunne, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Changeling
2008 · as Man on Jury (uncredited)

Addicted to Love
1997 · as Matheson

Bernard and Doris
2006 · as Board Member

An Alan Smithee Film: Burn, Hollywood, Burn
1998 · as Self

The Last Mogul
2005 · as Self

Making the Boys
2011 · as Self

Jay Sebring… Cutting to the Truth
2020 · as Self

Dominick Dunne: After the Party
2008 · as Self

Black White + Gray: A Portrait of Sam Wagstaff and Robert Mapplethorpe
2007 · as Self (archive footage)

Bad Marien's Last Year
1971 · as Guest

Celebrity: Dominick Dunne — A Journalist in the Age of Celebrity
2008 · as Self