H2S
- annos singulos: 1969
- Patriam: Italy
- genus: Science Fiction, Comedy
- Studio: Mars Film Produzione, Documento Film
- keyword: factory worker, students' movement, dystopia, anti-capitalism, leftist radicalism
- Director: Roberto Faenza
- cast: Lionel Stander, Denis Gilmore, Carole André, Giancarlo Cobelli, Paolo Poli, Franco Valobra