This is a must-see for any fan of 70s movies, or anyone who, like me, grew up in 70s and saw Cazale's films when they first opened. The walk down memory lane provided by the footage of the Godfather films, The Conversation, Dog Day Afternoon and Deer Hunter alone make it worthwhile. But the real treasure, of course, is the chance to revisit Cazale's performances. It sounds clichéd, but there really is no actor like him. It's also marvelous to see the host of the mega-talented actors and directors, including every luminary he worked with, participate & pay tribute to this singular talent. It's a shame there isn't more footage of him, and that he apparently never did a recorded interview. We only see Cazale through the lens of his characters - we never get to see him as just himself.