The Winterfilm Collective (listed as Winterfilm, Inc. in the credits to the film Winter Soldier) consisted of: Fred Aranow, Nancy Baker, Joe Bangert, Rhetta Barron, Robert Fiore, David Gillis, David Grubin

David Grubin

David Grubin is an American documentary filmmaker, who has produced and directed numerous films, many of which are best-known from airing on PBS.-Filmography:*The Great Air Race of 1924 *LBJ *FDR...

, Jeff Holstein, Barbara Jarvis, Al Kaupas, Barbara Kopple

Barbara Kopple

Barbara Kopple is an American film director, primarily known for her work in documentary film.-Biography:She grew up in Scarsdale, New York, the daughter of a textile executive and studied psychology at Northeastern University, after which she worked with the Maysles Brothers.Kopple has won two...

, Mark Lenix, Michael Lesser, Nancy Miller, Lee Osborne, Lucy Massie Phenix, Roger Phenix, Benay Rubenstein, and Michael Weil.

The collective produced the 1971 film

Film

A film, also called a movie or motion picture, is a series of still or moving images. It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects...

 documentary

Documentary film

Documentary films constitute a broad category of nonfictional motion pictures intended to document some aspect of reality, primarily for the purposes of instruction or maintaining a historical record...

 about the Winter Soldier Hearings

Winter Soldier Investigation

The "Winter Soldier Investigation" was a media event sponsored by the Vietnam Veterans Against the War from January 31, 1971 – February 2, 1971. It was intended to publicize war crimes and atrocities by the United States Armed Forces and their allies in the Vietnam War...

 in Detroit, as well as associated anti-war protests and marches.