How many movies have Robert Downey Jr. and Stan Lee appeared in together?

They have worked on 15 movies together! Their first movie together was Starz Inside - Comic Books Unbound (2008) while their highest rated movie together was Avengers: Infinity War (2018).

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Tony Stark / Iron Man
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Comic Book
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Executive Producer
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Tony Stark / Iron Man
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Executive Producer
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Comic Book
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In Memory Of
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Driver
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Tony Stark / Iron Man
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Executive Producer
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Schoolbus Driver
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Tony Stark / Iron Man
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FedEx deliveryman
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Executive Producer
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Tony Stark / Iron Man
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Executive Producer
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Himself
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Himself
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Himself
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Tony Stark / Iron Man
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Executive Producer
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Pageant Judge
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Tony Stark / Iron Man
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Himself
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Comic Book
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Executive Producer
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Himself
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Himself
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Tony Stark / Iron Man
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Stan Lee
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Himself
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Tony Stark (uncredited)
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Milwaukee Man Drinking from Bottle (uncredited)
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Tony Stark / Iron Man
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Stan Lee
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Tony Stark / Iron Man
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Executive Producer
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Gary
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Himself
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Himself