How many movies have Boonchai Kanlayasiri and Somsak Techaratanaprasert collaborated on?

They have worked on 3 movies together! Their first movie together was My Space (2004) while their highest rated movie together was Happiness of Kati (2009). They have not worked together since Happiness of Kati (2009). They are most known for their drama films together.

Crew
Second Assistant Director
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Executive Producer
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Third Assistant Director
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Executive Producer
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Screenplay
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Executive Producer
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Assistant Director
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Art Direction