My Sister, My Love (2007)
Original title: 僕は妹に恋をする
My Sister, My Love is a 2007 Japanese-language romance movie directed by Hiroshi Ando, with a running time of 2h 2m. It stars Jun Matsumoto, Nana Eikura and Yuta Hiraoka.
It is a taboo story about love and incest between twins. It's not about sex, it's about the feelings the two have for one another and how society views them.