Page "Two Mules for Sister Sara" Paragraph 5

All along the film, major plot twists revolve around the anachronistic use of dynamite.

Both the item and the word " dynamite " were invented in 1867 by Alfred Nobel.

The events depicted are supposed to take place during the French intervention in Mexico, between 1861 and 1866, before M. Nobel obtained patents for his invention: in England on May 7, 1867 and in Sweden on October 19, 1867.

This anachronism in a 1970 film about a part of Mexican history is to be related with the 1971 Sergio Leone Film Duck, You Sucker!

which relates the adventures of a fictional dynamite expert during another Mexican historical period: the revolution of 1911.