How many movies have John Stephenson and Joseph Barbera collaborated on?

They have worked on 20 movies together! Their first movie together was The Man Called Flintstone (1966) while their highest rated movie together was The Adventures of Robin Hoodnik (1972). They have not worked together since Scooby-Doo! and the Sea Monsters (2012). They are most known for their animation films together.

Role
Zelig (voice) (archive footage)
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Executive Producer
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Showroom Announcer
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Executive Producer
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Writer
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Special Appearance
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Mr. Slate
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Director
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Producer
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Story
Role
Fancy-Fancy / Officer Charlie Dibble / Waiter (voice)
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Executive Producer
Role
Mr. Slate / Moderator / Investor / Poker Player (voice)
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Executive Producer
Role
Doggie Daddy / Mr. Dingwell (voice)
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Executive Producer
Role
Mr. George Nate Slate (voice)
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Executive Producer
Role
Sloan / Andrew Jackson / Blacksmith (voice)
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Executive Producer
Role
Richelieu (voice)
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Executive Producer
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Sheriff of Nottingham / Carbuncle (voice)
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Director
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Producer
Role
Benny the Ball / Doggy Daddy / Hardy Har-Har (voice)
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Director
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Producer
Role
Mr. Slate / Various Voices (voice)
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Director
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Story