My thoughts on the postman always rings twice. The attraction between them was immediate. Very powerful eye contact. He was literally blown away by her. Gives new meaning to love at first sight. Some of the film noir aspects, burning hamburger, big man wanted sign, dropped lipstick, her being framed in the doorway, over the top outfit.
I have seen this movie quite a few times and never tire watching it. Rita Hayworth is spectacular in the role. The musical number is by far the best part of the movie. It shows just how terribly unhappy she is. But she really loves Johnny.