Atashin'chi the Movie (2003)
Original title: 映画 あたしンち
Atashin'chi the Movie is a 2003 Japanese-language animation movie directed by Tetsuo Yasumi, with a running time of 1h 36m. It stars Kenichi Ogata, Fumiko Orikasa and Daisuke Sakaguchi.
When teenager Mikan and her eccentric mom switch bodies, the rest of the family tries to adjust while attempting to reverse this peculiar phenomenon.