Oresama with english subtitles was recently put up on Youtube at the end of November. Maybe you would like to watch it again. I also found it very difficult to understand Miyavi without subtitles, mostly because I find his pronunciation to be a little odd. I’m not sure if he slurs or just has a wicked accent but I have difficulty separating his words. I still enjoy his movie for its entertainment value but yes, the acting could have been much better.