Around 00:01:44, Yvon is holding a gun in his right hand. On the next shot, he's holding a knife (wich is normally stabbed in his back).
Immediately after the car crash on the highway, Carco's BMW shows no damage when it is parked at the police station.
The Hong Kong-Paris flight is said to land in Paris at 5:30AM local time. It takes-off during daylight, but with an approximate flight time of 13 1/2 hours and the time zone difference, the plane should have left Hong Kong at around 10:00PM local time (when it would have been dark).