Other mistake: When Bond has knocked out the truck driver who was going to meet up with Grant, the driver is lying on his back. Bond grabs a bit of shirt and easily flips him over onto his belly. There is no way a person can flipped over so easily and with so little leverage.
Other mistake: When Bond returns to his room and places the rifle kit back in his briefcase, he fails to deactivate the booby trap before opening the case, but nothing happens. (00:49:40)