USA
Respectable citizens receive anonymous letters revealing their adulterous relationships. - IMDb
| 13:de brevet |  Sweden |
| 13:s kirje |  Finland |
| De 13de brief |  Belgium |
| La 13me lettre | Belgium |
| The 13th Letter |  Canada |
| The 13th Letter |  United Kingdom |
| The 13th Letter | USA |
| A 13ª Carta |  Portugal |
| Cartas envenenadas |  Spain |
| Cartas Venenosas |  Brazil |
| Cartas Venenosas |  Mexico |
| Det 13. brevet |  Norway |
| Giftige breve |  Denmark |
| The Last Letter | USA |
| On Üçüncü Mektup |  Turkey |
| La penna rossa |  Italy |
| La pluma escarlata |  Venezuela |
| Poison Pen | USA |
| The Raven | USA |
| The Scarlet Pen | USA |
| To 13on gramma (transliterated title) |  Greece |
| A Treisprezecea scrisoare |  Romania |
| La treizième lettre |  France |
| Trinaesto pismo (literal title) |  Yugoslavia |
| Trzynasty list |  Poland |
| Το 13ο γράμμα (orthographically correct title) | Greece |
| Το 13ον γράμμα | Greece |
| Тринадцатое письмо |  Russia |
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June Hedin [13] | Rochelle Turner |
