Ni Chana Ni Juana on AllMovie

This undistinguished comedy is about twin sisters separated at birth, one grows up in poverty in a rural village, and the other goes on to fame and fortune as a sophisticated singer and dancer. Juana (Maria Elena Velasco, also the director and writer) is taken by her father after she was born to be raised in a remote Mexican village, while Chana (also Velasco) grows up in Mexico City where she gets to meet the celebrated Spanish singer Pilar del Rio (Carmen Montejo) because her mother works for Pilar. After the mother dies, Chana is adopted by the singer and moves to Spain, where she also learns to sing and dance. When Pilar decides to go on a tour that includes Mexico, Chana and her long-separated twin finally have a chance to meet again. But there is no guarantee that everything will go smoothly, since the gap between them is so vast, and on top of that, Chana's irate ex-husband is unaware that she has a look-alike twin -- and he kidnaps the wrong woman.