Al son de las guitarras 1938
This costumbrist musical comedy is the first feature-length sound film filmed in the city of Bogotá in 1938, but apparently it was not finished or perhaps never premiered.

Olaya Herrera y Eduardo Santos o de la cuna al sepulcro 1937
First full-length sound film made by the Acevedo Brothers, it shows the birth and childhood of Enrique Olaya Herrera, born and baptized in Guateque. It also presents the gestation and launching of the presidential candidacy of Eduardo Santos for the years 1938 to 1942. Finally there are all the ceremonies and tributes carried out since the corpse of Enrique Olaya Herrera touches Colombian soil in Buenaventura until his burial in the cemetery of Bogota. (Newspaper "El Tiempo" - Bogotá, May 29, 1937)