Smetak
- Year : 2018
- Country : Brazil
- Genre : Documentary
- Studio : Gambiarra Sonora
- Keyword : musician, experimental
- Director : Nicolas Hallet, Mateus Dantas, Simone Dourado
- Cast : Walter Smetak, Mateus Dantas, Rogério Duarte, Thomas Gruetzmacher, Guilherme Magalhães Vaz, Marco Scarassatti