Winter Soldier is a 1972 American documentary film chronicling the Winter Soldier Investigation, which took place in Detroit, Michigan, from January 31 to February 2, 1971. The film documents the accounts of American soldiers who returned from the War in Vietnam and participated in this war crimes hearing.

The many documentary filmmakers in the Winterfilm Collective (listed as Winterfilm, Inc. in the credits to the film Winter Soldier) consisted of: Rusty Sachs, Fred Aranow, Nancy Baker, Joe Bangert, Rhetta Barron, Robert Fiore, David Gillis, David Grubin, Jeff Holstein, Barbara Jarvis, Al Kaupas, Barbara Kopple, Mark Lenix, Michael Lesser, Nancy Miller, Lee Osborne, Lucy Massie Phenix, Roger Phenix, Benay Rubenstein, and Michael Weil. The collective produced the 1971 film documentary about the Winter Soldier Hearings in Detroit, as well as associated anti-war protests and marches.