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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1957 | Diez mil dormitorios | Reporter (uncredited) | ★★★☆☆ |
| 1956 | Dos pasiones y un amor | Chef (uncredited) | ★★★☆☆ |
| 1954 | Música y lágrimas | Dr. Schillinger (uncredited) | ★★★☆☆ |
| 1953 | One Girl's Confession | Gambler (as Leo Mastovoy) | ★★★☆☆ |
| 1953 | Tres amores | Stranger in Café | ★★★☆☆ |
| 1953 | Los caballeros las prefieren rubias | Phillipe (uncredited) | ★★★★☆ |
| 1951 | Un americano en París | Audience Member (uncredited) | ★★★★☆ |
| 1945 | El Gran Flamarion | French Entertainer (uncredited) | ★★★☆☆ |
| 1945 | I Love a Mystery | Vovaritch (Uncredited) | ★★★☆☆ |
| 1944 | Las rocas blancas de Dover | Bandmaster in Dieppe (uncredited) | ★★★☆☆ |
| 1943 | Casablanca | Fydor (uncredited) | ★★★★☆ |
| 1943 | His Butler's Sister | Headwaiter | ★★★★☆ |
| 1943 | Madame Curie | Photographer (uncredited) | ★★★★☆ |
| 1942 | Ruta de Marruecos | Russian Announcer (uncredited) | ★★★☆☆ |
| 1939 | Wife, Husband and Friend | Minor Role | ★★★☆☆ |
| 1939 | Bridal Suite | Ptomkin - in Shipboard Brawl | ★★★☆☆ |
| Año | Título | Trabajo | Calificación |
|---|
| Año | Título | Personaje | Calificación |
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Películas destacadas de Leo Mostovoy
Estas son las películas más destacadas en las que ha trabajdo:
