Sin palabras (2010)

Elderly author Guzmán is tasked with taking care of his teenage grandson David for a few days while his mother is out of town. The two are virtual strangers, having met only a few times during the boy's whole life, as a consequence of a deep rift between the cantankerous old man and David's mother. Over the course of the next few days, bonds begin to form and each sees values in the other that they'd never considered before. The question is, can this trend continue?