Duck, You Sucker! (, 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. Set during the Mexican Revolution of the 1910s, the film tells the story of Juan Miranda, an amoral Mexican outlaw, and John Mallory, a former member of the Irish Volunteer Army. After they accidentally meet under less-than-friendly circumstances, Juan and John involuntarily become heroes of the Revolution, despite being forced to make heavy sacrifices. It is the second film of Leone's unofficial Once Upon a Time Trilogy, which includes the previous Once Upon a Time in the West (1968) and the subsequent Once Upon a Time in America (1984). The last western film directed by Leone, it is considered by some to be one of his most overlooked films. Plot In Revolution-torn 1913 Mexico, Juan Miranda, a Mexican outlaw leading a bandit family, robs a coach of wealthy men and rapes a female passenger who insulted him. Passing by on a motorcycle is John H. Mallory, an early Irish Republican explosives expert, who is working in Mexico as a silver prospector. Juan discovers his skill with dynamite and nitroglycerin and asks John (who initially states his name as "Seán") to help him rob the Mesa Verde National Bank. After John initially refuses, Juan frames him for the murder of his employer and several soldiers, making him a wanted criminal and offering to "protect" him in exchange for his help. John reluctantly agrees to help Juan rob the bank, but escapes on the way to Mesa Verde. Arriving in the city before Juan, John makes contact with Mexican revolutionaries led by physician Dr. Villega and agrees to use his explosives in their service. When Juan arrives, John inducts him into the revolutionaries' ranks. The bank is hit as part of an orchestrated attack on the Mexican army. Juan, interested only in the bank's money, is shocked to find that it has no funds and is instead being used by the army as a political prison. John, Juan and his family end up freeing hundreds of prisoners, inadvertently (and against his wishes) causing Juan to become a "great, grand, glorious hero of the revolution." The revolutionaries are chased into the hills by an army detachment