Aurora (Disney) welcomed Costa by asking her to perform a bird call, which she did successfully. However, being from Knoxville, Tennessee, Costa's strong southern accent nearly prevented her from being cast until she proved that she could sustain a fake British accent for the entire film. The filmmakers likened the situation to English actress Vivien Leigh successfully feigning a southern accent for her role as Scarlet O'Hara in the film "Gone With the Wind" (1939). Within hours of her audition, Walt Disney himself contacted Costa via telephone to offer her the job, which she immediately accepted. Aurora became Costa's first major film
Vivien Leigh lay in audience members attending to see what they believed would be a salacious story, rather than the Greek tragedy that they envisioned. The play also had strong supporters, among them Noël Coward, who described Leigh as "magnificent". After 326 performances, Leigh finished her run, and she was soon assigned to reprise her role as Blanche DuBois in the film version of the play. Her irreverent and often bawdy sense of humour allowed her to establish a rapport with Brando, but she had an initial difficulty in working with director Elia Kazan, who was displeased with the direction that Olivier