His Best Student (Spanish:Su mejor alumno) is a 1944 Argentine biographical film of the classical period directed by Lucas Demare and starring Enrique Muiño and Ángel Magaña.

In a survey of the 100 greatest films of Argentine cinema carried out by the Museo del Cine Pablo Ducrós Hicken in 2000, the film reached the 39th position.

[1] The film is an emotional enactment of the life of Domingo Sarmiento, the son of a former president of Argentina and the father of public education in the country, Domingo Faustino Sarmiento (Enrique Muiño).

"Dominguito" volunteers to fight in the Paraguayan War, in which he dies.

[3] The cast included:[3] The Argentine Academy of Cinematography Arts and Sciences gave a number of awards for the film:[4] At the 1945 Argentine Film Critics Association Awards the film won Best Film,[5] Best Director, Best Actor (Enrique Muiño), Best Adapted Screenplay (Ulises Petit de Murat, Homero Manzi) and Best Camera Operator (Humberto Peruzzi).