The Mustard Grain (Spanish: El grano de mostaza) is a 1962 Spanish comedy film directed and written by José Luis Sáenz de Heredia.
[1][2] It stars Manolo Gómez Bur, Rafael Alonso, Amparo Soler Leal, Gracita Morales and José Bódalo.
The storyline features a game of dominoes that results in an argument between Evelio and Horcajo and a challenge that could be deadly.
[9] In the view of Jordi Costa [es], it is one of the Spanish cinema's great jewels to be discovered.
[10] Joaquín de Luna considered the film to be a "little-known" instance of Hispanic costumbrismo featuring the "refreshing" intervention of Gracita Morales.