Comments on: Samurai 7 musical opens in Japan A website devoted to the study and appreciation of Akira Kurosawa's works and related subjects Sat, 14 Apr 2018 16:39:16 +0000 hourly 1 By: Vili Maunula Fri, 23 Jan 2015 07:47:09 +0000 The reviewer (in Japanese) seems to have liked the Samurai 7 musical.

To answer my own question from above: while Rashomon would probably be the most obvious choice, I think One Wonderful Sunday could actually work really well as a musical. Well, as far as musicals go, anyway. The film even sort of ends in a musical number.