Urok istorii
| MPAA Rating: | NR |
| Genre: | Drama |
| Country: | Bulgaria |
| Directed By: | Lev Arnshtam, Hristo Piskov, Mikhail Romm |
| Written By: | Lev Arnshtam, Hristo Piskov |
| Cast: | Velta Line, Yuri Averin, Nikolay Volkov, V. Yakovlev, Vladimir Kuznetsov, Janis Osis, Nikolai Solovyov, Gennadi Yudin, Stefan Savov, Pyotr Berezov, Encho Tagarov, Borya Burlyaev, Ivan Tonev, Apollon Yachnitskiy, Andrey Fayt, Georgi Kaloyanchev, Tzvetana Arnaudova, Karlis Trencis |
| In Theaters: | May 27, 1957 |
| Runtime: | 1 hour 31 minutes |
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