I have it...it's a very good documentary. Made a while back, but very good nonetheless. It includes Roberto Duran, Julio Cesar Chavez, Carlos Ortiz, Kid Gavilan, Salvador Sanchez, Carlos Zarate/Wilfredo Gomez, and Alexis Arguello.
Seems an interesting one, and I have seen it advertised before on sites. Most of the footage will probably have been viewed by people who are familiar with these fighters.
I just bought it last week. Not a masterpiece, but an affectionate work that aims to inspire, suitably hosted by Edward James Olmos. To me, what makes it most worthwhile is the abundant and enthusiastic commentary by these great champions, particularly Argüello, Duran and Ortiz. If you like them, you shouldn't hesitate to make the video part of your collection.