Military protocol is ignored, or done wrong, throughout the movie. Not one salute is done correctly. Most of the time, it's something resembling an American salute, palm towards the ground, instead of a French salute, palm facing forwards. Also, when General Mangedeurme enters a room, the order should be "À vos rangs, fixe", not yelling the general's name.
Take a look at your favorite stars from the 1990s and how they've changed in the last three decades.