Sawako Decides (川の底からこんにちは, Kawa no Soko kara Konnichiwa, "Hello from the bottom of the river") is a 2009 Japanese comedy-drama film directed by Yuya Ishii.

Kenichi Arai (Masashi Endō) is a second-rate designer at the toy company where Sawako works, and has a four-year-old daughter, Kayoko (Kira Aihara).

At the same time, Sawako's uncle, Nobuo (Ryo Iwamatsu) keeps phoning, asking her to return to her hometown, as her father Tadao (Kotaro Shiga) is dying from cirrhosis of the liver and wants her to take over the failing freshwater clam packing company he owns.

The trio arrive in the Pacific coast town of Kawaminami in southern Japan, where Sawako finds herself scorned by the womenfolk for having run away from home five years earlier with her high school tennis club captain, Yoshio (Ryu Morioka).

Actress Hikari Mitsushima found the story of the film amusing and personally negotiated with director Yuya Ishii, saying that he would "regret it if he didn't cast me.