Cesar De Sutter, the little boy who plays Ben's little brother, is in fact the youngest son of Marijke Pinoy, the woman who plays Ben's mother. On top of that, he has a mild form of autism.
The title Ben X is the character's name, but when spoken quickly in Dutch, you get Benniks, meaning: I am nothing.
The MMORPG (massively multiplayer online role-playing game) in the movie is the real life game, Archlord.
Belgium's Official Submission to the Best Foreign Language Film Category of the 80th Annual Academy Awards (2008).