Street Fighter scene
I love how halfway through the movie Vincent Cassel gets into a kickboxing fight with the skinheads. It's like the movie goes from serious and sober investigative thriller to a beat-em-up level from Street Fighter. Even the music sounded like a computer game from the nineties.
So out of place with the rest of the film it was almost comedic.
Did Vincent Cassel just want to have a fight scene in this movie and Kassovitz just wrote one in for him? Probably. And they made them evil nazi guys so we could enjoy them getting thrashed and not question its relevance to the plot. Of which it had none.