Specifically, our graphic novel MUSASHI, by myself and Michiru Morikawa (and partly based on the good research of my 'Uncle Bill', William Scott Wilson, an expert in Japanese culture). The cover is rather dramatic but we go into all aspects of Musashi's life and personality, including his paintings and zen meditation.
The producer (based literally in Hollywood, LA) is Le'Ander Nicholson of Believeland Management. Good luck to him and Ben Wan in moving the book forwards to a movie. Anywone with experience of this will know its a long and difficult road from signing the option contract to actually having a movie made and released.
But nice to make the first step...