Nobody Knows (誰も知らない, Dare mo Shiranai) is a 2004 Japanese drama film based on the 1988 event known as the "Affair of the four abandoned children of Sugamo". The film is directed by Hirokazu Koreeda, and it stars actors Yūya Yagira, Ayu Kitaura, Hiei Kimura. Wikipedia
Saki: You washed ya hair?
Akira Fukushima: Yesterday, at the park.