Continuity: During the film's final scene, The Tramp is seen holding the flower to his face when seen from the front; when seen from the rear, he is holding it to his lapel.
Revealing mistakes: When the tramp accidentally swallows the whistle, his real eyebrows are visible beneath his fake ones.
Revealing mistakes: When the man swallows part of the Tramp's soap and starts spraying bubbles, the tube used to spray the bubbles is clearly visible behind him.
Continuity: When the Tramp takes the girl home, the birdcage outside the window is gone, but later reappears.
Continuity: When saving the man's life, and trying to climb out of the water, the position of the Tramp's hat is inconsistent.
Continuity: When handcuffed to go to jail, the Tramp's left hand is cuffed, but when arriving at the jail, it is his right hand that is cuffed.
Continuity: When the tramp buys all of the flower girl's flowers, she wears black stockings, but when he brings her home immediately afterward, she wears tan stockings.
Continuity: In the scene when the Tramp and the Millionaire are drinking champagne with the burglars in the house. The Tramp places the glasses on the table behind them. When one of the burglar come up behind them the glasses are gone.
Continuity: In the very same scene, the Tramp tried to place a gun in the desk top table. The millionaire was lying back on the scene. The next shot, he was sitting upright.