The movie Teenage Mutant Ninja Turtles 3 was filmed there in Oregon. I think the locations for feudal Japan were either in or near Astoria if I'm not mistaking. None of the movie was filmed in Japan. I'm sure it was easier, faster, & cheaper for the movie making crew to make the movie in Oregon than in Japan too because Oregon is closer & had spots that were easier to decorate like 17th century Japan.