I saw a documentary on this not too long ago. It was pretty good.
I also recall reading a book several years ago on business strategies based on the text.
Beyond that, I swear it seems like there was a movie made all in Chinese (or perhaps Japanese) with English Subtitles. The director's name escapes me but was a very famous asian director, author. The movie I am thinking of (if it was based on Sun Tzu's work) was over 4 hours long. They actually built a city and set in the plains of China just for this movie.