Un bonheur hydroélectrique
- Año: 2024
- País: France
- Género: Documental
- Estudio: Petit à Petit Production, ARTE, Kintop
- Palabra clave: interview, engineer, archive footage, social documentary, russian man, historical drama, 1960s, amateur footage, old footage, testimony
- Director: Alexander Markov
- Emitir: