Why the Police shot everybody in the end, execution style, even those not having any guns, even the last one, asking for help? This is the law in France? Were they sure (all) the young were involved? They doesn't have to bring them to a trial? I understand the line of the film and what mr Bonello commented, but the end is twisted jus for shock the audience, in my opinion, just for the sake of shocking. Anyway, the length of the move is way too big, the first part is boring, the actions are unclear - why and who killed that young in that empty floor? - the second part is also boring and unclear, why do they hide in a mall, wtf?, while the ending is cruel without any reason but hoping the movie will be controversial at his most.