How many movies have Carl Laemmle and Joe Murphy collaborated on?

They have worked on 3 movies together! Their first movie together was The Dumb Girl of Portici (1916) while their highest rated movie together was The Man Who Laughs (1928). They have not worked together since The Man Who Laughs (1928). They are most known for their horror films together.

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Hardquanones Messenger (uncredited)
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Man in Crowd at madman Masaniello Gathering