Continuity mistake: When a man holds Barb's licence of prostitution, the position of his finger around it changes between shots.
Continuity mistake: During the opening credits, when Barb is in her dressing room, the position of her hands and fingers under her chin changes between shots.
Continuity mistake: After Barb stabs a stiletto on a man's forehead during the opening credits, Santos exhales a puff of smoke. An instant cut later, he is drinking from a glass.
Revealing mistake: When the bad guy free-falls from the crane and dies, he is replaced with an obvious dummy.