H2S
- Jaar: 1969
- Land: Italy
- Genre: Sciencefiction, Komedie
- Studio: Mars Film Produzione, Documento Film
- Trefwoord: factory worker, students' movement, dystopia, anti-capitalism, leftist radicalism
- Regisseur: Roberto Faenza
- Gips: Lionel Stander, Denis Gilmore, Carole André, Giancarlo Cobelli, Paolo Poli, Franco Valobra