Vincent Cassel broke his nose while filming the fight scene with the skinheads.
The dead body in the morgue - made out of latex - is formed after Nadia Farès' fitness trainer.
Director Cameo: [Mathieu Kassovitz] as the hooded killer who shoots at 'Jean Reno' at the bottom of the stairwell in the house on stilts. His voice is also heard over the CB radio talking to Vincent Cassel.