"The windows were closed and the sunshine coming in through the venetian blinds showed up the dust in the air."
The recurring Venetian blinds lighting technique is a well crafted use of mise-en-scene in Double Indemnity. This classic film noir tactic is used multiple times. The best use of this tactic is the scene where Walter and Phyllis are both planning to kill each other. Only Walter's shadow is projected on the wall, while Phyllis waits on the chair sitting on top of her gun. The Venetian blinds separate the two characters before Mrs, Detriechson's demise.
The next use of mise-en-scene I analyzed was the differences and similarities between the first time we meet the two femme fatales'. In both shots there is build up and a revealing of the two characters but it is done in two different ways. In Double Indemnity Mrs. Dietrichson is shown with a high-angle shot where she is wearing next to nothing. The significance of this technique is that Walter is left vulnerable at the bottom of the staircase. In L.A. Confidential, as Bud White walks across the liquor store the shot pans over Lynn wearing her black robe. When Lynn's face is revealed Bud White is caught off guard by her looks and is also left very vulnerable. The last difference between the two shots is that Lynn is wearing an excess amount of clothes while Mrs. Dietrichson is wearing a revealing towel. Although the two shots achieve the same result, they are portrayed very differently.
The last cinematography nod I give to double indemnity is the use of contrast between light and darkness. The silhouette of these two characters gives the audience a feeling of mystery and the unknown. In this specific picture the lighting technique is called chiaroscuro lighting. The use of shadows is also very prevalent in the film which achieves the same effect of mystery and the unknown.