Santa Cruz first wrote the script for a film Un Señor mucamo in 1940 but it was not until ten years later in 1950 that his career had a breakthrough with his adaption of the Oscar Wilde play , The Importance of Being Earnest in Al compás de tu mentira .
Santa Cruz first wrote the script for a movie called `` Un Señor mucamo '' in 1940 . Ten years later in 1950 that his career had a breakthrough with his adaption of the Oscar Wilde play , The Importance of Being Earnest in `` Al compás de tu mentira '' .