The movie started production around late 1968. By the time it was released in 1970, the protagonists Juan & Junior had already split up as a duo and started separate careers. Juan had already released on his own a musical movie a year earlier, A 45 revoluciones por minuto (1969) and Junior, after marrying Rocío Dúrcal that same 1970, had started a solo career combined with a music act with his wife. Juan and Junior, who had split up on very bad terms, wouldn't talk to each other or appear together in public except for one brief performance 20 years later in 1990 on TV.