Directed by: James Parrott
Starring: Oliver Hardy, Stan Laurel, Dinah, Gladys Gale
Revealing mistake: When Oliver is fleeing the rolling crate on the steps, he falls to the ground and the crate flies over him. At this point, the wires pulling the crate are visible.
Revealing mistake: When Stan falls off the balcony and into the fountain when throwing Oliver's bowler hat back at him, you can see water marks on the walls caused by splashes from previous takes.
Visible crew/equipment: When Oliver starts walking down the steps to see the policeman, the piano crate starts sliding down the steps after him. You can see the shadows of the camera and crew on the side of the crate when it slides past.
Nursemaid: And not only that, he kicked me.
Policeman: He kicked you?
Nursemaid: Yes, officer, right in the middle of my daily duty.
Policeman: Oh, he kicked you did he?
Trivia: "The Music Box" is a remake of one of Laurel and Hardy's earlier silent films, "Hats Off", which is now presumed lost.