Corazón salvaje ("Wild at Heart") was the second film adaptation of the Caridad Bravo Adams 1957 novel of the same name. It is considered the closest to the original story. The first film was made in 1956 and starred Martha Roth. The 1968 version starred Julio Alemán in the role of Juan del Diablo and Angélica María as Mónica Molnar – this part made her a star in China. She later repeated her role in the 1977 telenovela version.