From the stark opening, director Giulio Petroni lets us know that he is going to take us on an interesting ride. The sequence for which we watch through Bill's eyes as his family is brutalized and murdered is one of the most disturbing ten minutes ever put on film.
Even more stunning is the sequence for which there is jump cut from Bill as a child after the carnage to Bill as an adult, as a living killing machine. It plays like a version of THE TERMINATOR if it was set in the 19th Century American West.
What progresses from there is a very interesting revenge film, loosely patterned like POINT BLANK (1967) where Bill is the wild card in the middle of Ryan's quest for vengeance.(Watch both films....Van Cleef and Marvin's characters function the same way...."All I want is $15,000...nothing more, nothing less...)
What I found the most interesting is the way Petroni chose to photograph the three sections of the film. They are all visually distinct and this change seems to map the character's journey through out the film, that being Bill's progression from a traumatized child to a hate-filled adult on the road to hell.
My only complaint is the quality of the prints.
I hope MGM manages to track down a decent negative and have this film restored.
It deserves it.