Continuity mistake: When Lauren Bacall attacks Edward G. Robinson (after he goads her wheelchair-bound father-in-law into attacking him, causing him to fall over), she clearly scratches him on his left cheek. Shortly afterwards, Claire Trevor notices the scratch marks and wonders what happened. The only trouble is, she notices them on his right cheek.
Visible crew/equipment: During the storm scene, there are two shots of the hotel from outside along the beach. In both instances, the wires holding the palm trees are visible.
Revealing mistake: In the scene where the two gangsters take the dead Deputy Sawyer's body out to sea to dispose of it, as the actor is being pushed overboard, he tucks his arms into his chest, as if to prepare for the plunge.