In an essay from , Luis Buñuel, while arguing that gin stimulates the imagination, explains how he came to use two actresses to play a single role in his final film:
If I had to list all the benefits of alcohol, it would be endless. In 1977, in Madrid, when I was in despair after a tempestuous argument with an actress who’d brought the shooting of to a halt, the producer, Serge Silberman, decided to abandon the film altogether. The considerable financial loss was depressing us both until one evening, when we were drowning our sorrows in a bar, I suddenly had the idea (after two dry martinis) of using two actresses in the same role, a tactic that had never been tried before. Although I made the suggestion as a joke, Silberman loved it, and the film was saved. Once again, the combination of bar and gin proved ubeatable.