The chimes on the doorbell of the Breckinridge's house play "How Dry I Am," quite fitting considering Donald's (Van Johnson) drinking problem and the boozy household guests that tempt him.
There is a town called Nogales in the US, near the Mexican border, and another called Nogales in Mexico. This can be slightly confusing at times, as the two men are in the American Nogales but Eric talks about having to go to Nogales (the Mexican one).
Sandy Descher played Johnson's daughter two years earlier in "The Last Time I Saw Paris."