Gregorio Walerstein: El zar
| MPAA Rating: | NR |
| Genre: | Biography, Documentary |
| Country: | Mexico |
| Produced By: | Mauricio Walerstein, Carlos Vasallo, Hector Abadie |
| Directed By: | Carlos Vasallo |
| Written By: | Vanessa Sánchez |
| In Theaters: | Oct 21, 2009 |
| Runtime: | 58 minutes |
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