The Key
Movie| Title | Klíč |
| User score | 5.3 |
| Release date | May 14, 1971 |
| Genre | Drama, History |
| Director | Vladimír Čech |
| Production country | Czechoslovakia |
| Production companies | Filmové studio Barrandov |
| Run time | 97 min. |
Jan Zika is the legendary hero of the communist resistance movement during World War II and leading functionary of the second underground Central Committee of the Communist Party of Czechoslovakia.
