From left, actors Khao, Haruka Ayase, Suzu Hirose, Masami Nagasawa pose for photographers during a photo call for the film Our Little Sister, at the 68th international film festival, Cannes, southern France, Thursday, May 14, 2015. (AP Photo/Thibault Camus)

From left, director Hirokazu Kore-Eda, Masami Nagasawa, Suzu Hirose, Haruka Ayase, and Khao pose for photographers during a photo call for the film Our Little Sister, at the 68th international film festival, Cannes, southern France, Thursday, May 14, 2015. (AP Photo/Thibault Camus)

(From L) Japanese actresses Kaho, Ayase Haruka, Suzu Hirose and Masami Nagasawa pose during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Kaho waves during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actresses Masami Nagasawa (L) and Kaho pose during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese director Hirokazu Kore-Eda poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actress Masami Nagasawa poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actress Kaho poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese actress Ayase Haruka poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Ayase Haruka poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese director Hirokazu Kore-Eda (C) poses with Japanese actresses Suzu Hirose (L) and Ayase Haruka during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese director Hirokazu Kore-Eda poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese director Hirokazu Kore-Eda poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Masami Nagasawa poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Masami Nagasawa poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Masami Nagasawa poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Kaho poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Kaho poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actresses Masami Nagasawa (L) and Kaho pose during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS

Japanese director Hirokazu Kore-Eda (C) poses with Japanese actresses Kaho (L) and Masami Nagasawa during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / LOIC VENANCE

Japanese actress Suzu Hirose poses during a photocall for the film "Umimachi Diary" (Our Little Sister) during the 68th Cannes Film Festival in Cannes, southeastern France, on May 14, 2015. AFP PHOTO / BERTRAND LANGLOIS