How many movies have Kanan Nakahara and Nobuyuki Takahashi collaborated on?

They have worked on 1 movie together! Their first movie together was Asabuki Riyako, Female Lawyer: The Young Eyewitness (1999) and was their highest rated movie together. They have not worked together since Asabuki Riyako, Female Lawyer: The Young Eyewitness (1999).