I found a page with the poster of a new movie with Kei-chan. The film's called Gachi-Ban and Kei-chan is the third name on the cast list! http://blog.livedoor.jp/gachiban/
I'm not sure when the movie is realised but I think that is in this summer or the next autumm. The other actors are Kubozuka Shunsuke
& Akiyama Nana
I'm really happy for Minami because normally we haven't the chance to see him in movies.
Go go Kei-chan!! ò__ó