Continuity mistake: In the establishing shot of the guy whose tie Bond subsequently pins to the bar in the casino, Bond's X-Ray sunglasses reveal he is carrying three weapons: a revolver and a knife on his left side, and on his right side a submachine gun. When Bond later uses the knife to pin the guy's tie to the bar and kicks his legs out from under him, his jacket falls open. We see the revolver, which Bond removes and gives to the barman. However, the submachine gun has mysteriously disappeared.
swordfish
21st Mar 2018