How many movies have Kenichi Yamaguchi and Kentaro Takahashi collaborated on?

They have worked on 2 movies together! Their first movie together was The Cat Returns (2002) while their highest rated movie together was Tekkonkinkreet (2006). They have not worked together since Tekkonkinkreet (2006).

Tekkonkinkreet (2006)

Crew
Key Animation
Crew
Compositing Artist

The Cat Returns (2002)

Crew
Key Animation
Crew
Director of Photography