Some Facts about "Nobody Knows":

- This Film was inspired by a real event known as the “Affair of the Four Abandoned Children of Nishi-Sugamo.” This affair happened 16 years ago, in 1988.

Born of different fathers, these children never went to school and didn’t legally exist because their births were never declared. Abandoned by their mother, they lived on their own for six months. The death of the youngest girl put a tragic end to this adventure. Curiously, not one inhabitant of the building was aware of the existence of three of the children.

This headline brought up various questions to director’s mind… The life of these children couldn’t have been only negative. There must have been a richness other than material, based on those moments of understanding, joy, sadness and hope. So he didn’t want to show the “hell” as seen from the outside, but the “richness” of their life as seen from inside.

- The Best Actor Award for "Cannes Film Festival 2004" goes to the 14-year-old Yuuya Yagira for his role in "Nobody Knows".