Continuity mistake: As Karen and Beverly fight on the snooker table and pull each others toupees off, the black ball on the snooker table keeps on disappearing, reappearing and moving around the table through the scene.
Continuity mistake: When Karen is about to pot the black ball in snooker, Beverly does a fake sneeze to make Karen loose her concentration. Karen's stick is on the table when she grumbles, but is in her hand in the next shot.
Continuity mistake: As Karen and Beverly play snooker, and are trying to pot the black ball, the positions of all the little blue cube-stick chalks keep changing. They jump onto the table/onto the tableside between a few shots.