Sacha

Continuity mistake: When Groucho tells Chico that he wants to hire the singer his cigar is in his mouth. A shot later it disappears.

Sacha

Audio problem: After Chico and Harpo first meet there's a man at the opera playing a drum. Not only is he out of sync with the sound we hear, but he is mimicking the blows.

Sacha

Continuity mistake: During the first scene where Groucho and Claypool seat back-to-back, the chairs are sometimes right next to each other or in different positions.

Sacha

Continuity mistake: During the crowded cabin scene, Harpo puts his foot on the manicure's tray. In the close-up, the tray has turned 180ยบ, note the position of the bowl.

Sacha