Antonio Valenzuela

Mexican feature film

Diamante is a Mexican short film from 1984. It premiered on May 17, 1986 at the National Cineteca of Mexico. The plot tells the story of Diamond, a hostile criminal who dies at the hands of a child.

Inspired by the life of Toluca-born boxer Ernesto Barrera, who became the national flyweight champion in 1960. It portrays the meteoric career, rapid rise, and tragic downfall of the fighter, from his impoverished childhood and early days in boxing to his death in 1983, brought about by alcoholism.