Duck, You Sucker! (Italian: Giù la testa, lit. "Duck Your Head", "Get Down"), also known as A Fistful of Dynamite and Once Upon a Time ... the Revolution, is a 1971 epic Zapata Western film directed and co-written by Sergio Leone and starring Rod Steiger, James Coburn, and Romolo Valli.
https://en.wikipedia.org/wiki/Duck,_You_Sucker!
Great find. Thanks so much!
A movie with this much narration just has to be great.
Also, Xerxes the cat should have won the Oscar that year. Just sayin'