During a trip up the Rio Negro, in the Amazon forest, the director looks for a language imposed on the indigenous people by the Portuguese colonizers. Through this mixed language, Nheengatu, and with additional footage from the local population, the film is constructed at the meeting of two worlds.
- Written and directed by: José Barahona
- Production: Carolina Dias and Refinaria Filmes
- Co-Production: Fernando Vendrell and David & Golias
- Director of Photography: Mário Franca
- Editing: Jordana Berg
- Original Music: Clower Curtis
- Sound Editing and Mixing: Guilherme Algarve, Damião Lopes
- DocLisboa 2020
- São Paulo International Film Festival 2020
- XXVI Festival Caminhos do Cinema Português 2020: Best Documentary
- CineAmazônia 2020: Best Film
- Fest Aruanda 2020: Best Director and Best Sound Design
- Festival Internacional del Nuevo Cine Latinoamericano de la Habana
- Millenium Docs Against Gravity Film Festival, Poland 2021
- 23rd Festival du Cinéma Brésilien de Paris (2021)