Continuity mistake: When Leslie throws Jerry's Painting into the lake, the painting is seen still on the easel when they show Jerry with his hands on his head. (00:02:20)
Fancy Party - S3-E9
Continuity mistake: When Ron is groaning about his tooth pain, the camera cuts at different angles. Leslie's mug moves from the table to her hand in two shots.
Continuity mistake: When they're in the club, Leslie is dancing facing away from Chris and Ann, but in the next shot, she's facing towards them.
