Both movies are about mistreated children. The titular character in Boy is put into constant danger (thrown in front of moving vehicles) and in that way is physically abused, basically. The children in Nobody Knows are abandoned by their mother. And both have really good child actor in leading role.
Both films focus on an older boy taking care of a younger child.
Both feature kids abandoned by their parents and forced to survive alone.
In Nobody Knows, a mother of three kids leaves the house and never comes back. The children must live alone under the supervision of the older brother.
In Stand by Me, a homeless boy meets a homeless child and begins to take care of him.
Both films have a similar vibe.
Both are sad, emotional movies with superb acting.
Both feature kids abandoned by their parents and forced to survive alone.
In Nobody Knows, a mother of three kids leaves the house and never comes back. The children must live alone under the supervision of the older brother.
In Stand by Me, a homeless boy meets a homeless child and begins to take care of him.
Both films have a similar vibe.
Both are sad, emotional movies with superb acting.