The Secret of Substance
| MPAA Rating: | NR |
| Genre: | Documentary, History |
| Directed By: | Pavel Klushantsev |
| Written By: | Vladimir Gryaznov |
| Cast: | Leonid Khmara |
| In Theaters: | N/A |
| Runtime: | 50 minutes |
Followers: 0
| MPAA Rating: | NR |
| Genre: | Documentary, History |
| Directed By: | Pavel Klushantsev |
| Written By: | Vladimir Gryaznov |
| Cast: | Leonid Khmara |
| In Theaters: | N/A |
| Runtime: | 50 minutes |