In Simón Mesa Soto’s “A Poet,” Oscár Restrepo (Ubeimar Rios) is a failed Columbian writer who keeps a photo of the author José Asunción Silva above his mantle. “A pretty sad one.”This image released by 1-2 Special shows Ubeimar Rios in a scene from "A Poet." In this, Soto’s film is an ironic allegory about art worlds beyond poetry. But if Soto’s film is loose and gritty, its satire is remarkably precise. “A Poet,” a 1-2 Special release in theaters Friday, is unrated by the Motion Picture Association.