How many movies have Jason Robards Sr. and Phil Warren acted in together?

They have worked on 12 movies together! Their first movie together was The Green Hornet Strikes Again! (1940) while their highest rated movie together was Born to Kill (1947). They have not worked together since Dick Tracy's Dilemma (1947).

Role
Hawks (uncredited)
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Johnson (uncredited)
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Conductor (uncredited)
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Chauffeur (uncredited)
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Cop (uncredited)
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Intern (uncredited)
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Captain (uncredited)
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Dr. Martin (uncredited)
Role
Al Marsh (uncredited)
Role
Bill Brannegan
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Alert Coffeyville Citizen (uncredited)
Role
Grat Dalton
Role
Policeman with Liquor Bottle (uncredited)
Role
Jerry Robinson (uncredited)