Loco por ellas is a Mexican-Venezuelan musical comedy and romance film co-produced in 1965 and released on 5 August 1966, written and directed by Manuel de la Pedrosa, and starring Germán Valdés ëTin-Tanû and Lorena Velázquez. This film features of which there is a special participation of some Venezuelan actors, among them the singer and actor Néstor Zavarce.
This film was shot on location in San Juan, Puerto Rico and Caracas, Venezuela. This is the second time Tin-Tan plays a double role.
Tin Tan plays a double role as twin brothers: One is a womanizer and a famous singer. The other is a lost man who still lives in the family home. When the singer falls ill, he sends the twin in his place, but in reality he wants to commit a million-dollar robbery.