When Larry is looking up to see if the horseshoe is going to fall again; during the close-up of the horse shoe over the door he's standing in, is closed.
In the shot of the Stooges landing on the pier, the shadows of the suspended dummies and the cord they hang from are visible.
Larry reminisces how he was eating bread and hot dogs when he first met his girl, but he was shown eating spaghetti and meatballs.