Nana (series)

Nana is a romance-drama shoujo manga and anime series by Ai Yazawa.

Nana (live-action film)
There is a Bubble Bath scene.

Episode 5
Nana Osaki takes a Bath in a Clawfoot Bathtub.

Episode 9
Nana Komatsu takes a Bubble Bath in a Clawfoot Bathtub.

Episode 10
Nana Osaki takes a Bubble Bath in a Clawfoot Bathtub.

Episode 18
Nana Osaki takes a Bath.

Episode 24
Nana Osaki takes a Bath in a Clawfoot Bathtub.

Episode 28
Nana Osaki takes a Bubble Bath in a Clawfoot Bathtub but is barged in on by Nana Komatsu who then strips and then cannonballs into the Bath with her. Both of them end up sharing the tub and talk.