Gina as Violet? Jennifer as Corky?

Interesting fact about the movie I got from the trivia section:

The film was financed with the understanding that Jennifer Tilly was to play the role of Corky. The actress playing Violet dropped out of the project shortly before shooting began, however. At this point Gina Gershon became available to do the film. At first she was to play Violet; but since she was better suited to Corky, she and Tilly switched roles.

Somehow, I just can't picture either one of them in each other's roles.