1999 - Seamless
1999 - Osaka Story
2000 - Day Dream (Kentaro directed this movie, too.)
2001 - The Bleep Brothers
I suppose that Kentaro has been all over the Japanese media, but this is the only tidbit that I found on the net:
Best Spring in the World
Festival of Flower and Sun in Cote d'Azul
Project initiated, produced and directed by Kazuo MATSUI
The first part of the series to travel for the most joyous spring season in the world. Kentaro Seagal travels to the sourthern coast of France to find brilliant showers of flowers and sunlight.