Un bonheur hydroélectrique
- Viti: 2024
- Vendi: France
- Zhanri: Documentary
- Studio: Petit à Petit Production, ARTE, Kintop
- Fjalen: interview, engineer, archive footage, social documentary, russian man, historical drama, 1960s, amateur footage, old footage, testimony
- Drejtori: Alexander Markov
- Cast: