Continuity mistake: When Charlie dives into the other boxer (Hank Mann) you can clearly see in the DVD release that Charlie is supported by a wire.
Continuity mistake: When the Tramp takes the blind girl home in the Rolls for the first time, he hands her her cane. But when they arrive at her house, she doesn't have her cane and he doesn't hand it back to her.
Continuity mistake: When the millionaire has offered to give Charlie $1,000 for the girl, Charlie's full champagne glass is on the table behind the sofa. When Charlie finds the gun on the floor, the champagne glass has moved to the other end of the table, and is almost empty. (01:12:00)