When teenagers see their parents goofing around or generally not acting their ancient age, they often react with embarrassment, scorn or the fervent wish that these so-called adults would just grow up. Then inevitably, not long later, those sophisticated 15-year-olds are goofing around themselves — acting their age. Unless, that is, the teenager is Hatsuki (Ayaka Miyoshi), the heroine of Toru Yamamoto’s comedy “Gummo Ebian! (G’mor Evian!).”
Hatsuki’s former-punk-guitarist mom, Aki (Kumiko Aso), is still as fun-loving and convention-defying as when she had Hatsuki at age 17 — though she looks the pulled-together businesswoman when she leaves in the morning for work. Her daughter, on the other hand, diligently shops, cooks, cleans and otherwise plays the grown-up in her single-parent house.