How many movies have Mario Brega and Sergio Leone collaborated on?

They have worked on 10 movies together! Their first movie together was A Fistful of Dollars (1964) while their highest rated movie together was The Good, the Bad and the Ugly (1966). They have not worked together since Troppo forte (1986). They are most known for their comedy films together.

Role
Rosario Calascibetta, a killer
Crew
Producer
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Coach Driver
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Executive Producer
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Assistant Director
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Idea
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Director of Operations
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Pedro
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Idea
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Executive Producer
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Second Assistant Director
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Second Unit Director
Role
Corporal Wallace
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Director
Crew
Screenplay
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Story
Role
Niño, Member of Indio's Gang
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Director
Crew
Screenplay
Role
Whistling Bounty Hunter (voice) (uncredited)
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Story
Role
Chico
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Director
Crew
Screenstory
Crew
Screenplay