Director
Xavier Gens was originally asked by the studio to make the movie PG-13, which he refused to do because of the source material. He was allowed to shoot the movie aiming for an R, however in the final stages, he was removed and
Nicolas De Toth was brought in to re-edit the movie for commercial purposes, as he did with
Die Hard 4: Retour en enfer (2007) (he is thanked in the credits for this editing).