Name of Japanese movie--help

Somewhere in the back of my memory there is a movie that involves a samurai committing seppuku with a wooden sword. It takes him a long, long time. I can’t for the life of me rememeber anything else, can anyone help?

This may be your movie.

That sure sounds right. Thanks!

Of especial importance to me, as a beginning kendo student who, yesterday, trod on the sensei’s toes. I hardly slept for fear I’d have to do exactly this.

I remember seeing this movie (as “Harakiri”), and it most definitely has the “by wooden sword” scene - and it is brutal. I can’t remember the specifics, but this samurai/ronin is so down-on-his-luck, that he sells his swords (his “soul”), and only has these bamboo blades.
The bad guy (and I can’t remember why) “allows” the samurai to die honorably by committing seppuku. But then screws him by making him do it with the bamboo swords. Brutal.