In 1956, her political situation in the United States was resolved. She began to listen with interest to theatrical offerings. Del Río was already thinking that the play "Anastacia" of Marcelle Maurette, would be a good choice for her debut. To prepare for this new facet of her career, she engaged the services of Stella Adler as her acting coach. Del Río debuted successfully at the theater on the Falmouth Playhouse in Massachusetts on July 6, 1956 and to continue with a tour of seven other theaters throughout New England. She took advantage of her return to the United States and granted an interview to Louella Parsons to make clear her political position: "In Mexico we are worried and fighting against communism." In 1957, she was selected as vice president of the jury of the 1957 Cannes Film Festival. She was the first woman to sit on the jury.