Here is Sergio Leone on the set of THE GOOD, THE BAD, AND THE UGLY with all three protagonists; Clint Eastwood, Eli Wallach, and Lee Van Cleef. Leone's films not only reinvented the western but action films themselves.
These films of Sergio Leone are what fired my passion for film. I had heard of them and went to a re-release, sat down late, and saw the opening to A FISTFUL OF DOLLARS. I was in the middle of helping my date remove her coat and stopped cold. Holy Mackeral!!!