I Dream in Another Language

Sueño en otro idioma is a movie starring Fernando Álvarez Rebeil, José Manuel Poncelis, and Eligio Meléndez. When a language dies, a unique vision of the world is lost forever.
An indigenous language is in peril, as its last two speakers had a quarrel in the past and haven't spoken to each other in over 50 years. Martín, a young linguist, will undertake the challenge of bringing the old friends back together and convincing them to speak once again so he can obtain a recorded registration of the language and study it.