H2S
- taona: 1969
- Firenena: Italy
- Genre: Science Fiction, Comedy
- Studio: Mars Film Produzione, Documento Film
- Keyword: factory worker, students' movement, dystopia, anti-capitalism, leftist radicalism
- tale: Roberto Faenza
- Cast: Lionel Stander, Denis Gilmore, Carole André, Giancarlo Cobelli, Paolo Poli, Franco Valobra