Continuity mistake: In the first fight scene aboard the boat, Ace's hat falls off his head. He then breaks through a door and falls down. As he stands up, the hat reappears on his head.
Continuity mistake: Baxter and Beecher are riding in a horse-drawn wagon. As they go across a bridge, the train carrying the Marx Brothers approaches. Baxter and Beecher leap off the bridge, one jumping to the right and one jumping to the left, but they are side by side when they land in the river below.