Charles Kiselyak's A Constant Forge: The Life and Art of John Cassavetes is a detailed journey through the career of one of film's greatest pioneers and iconoclasts. Assembled from candid interviews with Cassavetes' collaborators and friends, rare photographs, archival footage, and the director's own words, the film paints a revealing portrait of a man whose fierce love, courage, and dedication changed the face of cinema forever. It contains interviews with Cassavetes himself as well as recollections by actors who have worked with him and thoughts by admirers, including Lynn Carlin, Seymour Cassel, Peter Falk, John A. Gallagher, Ben Gazzara, Lelia Goldoni, Annette Insdorf, Carol Kane, Sean Penn, Gena Rowlands and Jon Voight.