How many movies have James Wan and Leigh Whannell collaborated on?

They have worked on 21 movies together! Their first movie together was Stygian (1998) while their highest rated movie together was Saw (2004). They are most known for their horror films together.

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Darren
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Adam Stanheight (archive footage) (uncredited)
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Adam Faulkner-Stanheight
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