How many movies have Audrey Betz and William H. O'Brien acted in together?

They have worked on 3 movies together! Their first movie together was Two Sisters from Boston (1946) while their highest rated movie together was To Kill a Mockingbird (1962). They have not worked together since To Kill a Mockingbird (1962). They are most known for their comedy films together.

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Courtroom Spectator (uncredited)
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Courtroom Spectator (uncredited)
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Madame Grenadi (uncredited)
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Recording Lab Assistant (uncredited)