The Letter was the last film produced by Duangkamol Limcharoen before she died on December 8, 2003, at age thirty-nine. Director Pa-oon Chantarasiri, making her first feature film, agreed to take on the project, as a favor to her producer-friend. Starring popular Thai
soap opera actress
Anne Thongprasom, the film was a hit at the local box office. Facial tissues were handed out in front of cinemas for free in anticipation of the audiences' reactions to the final scenes. "It's an effective melodrama, a movie of well-executed cliches and retro sensibilities," wrote
Bangkok Post film critic King Rithdee. "But only Anne's performance—especially her ability to switch on a fountain of tears—conceals the insubstantial nature of the film's build-up and its banal, I-love-you-forever kind of dialogue. Don't forget to bring a handkerchief. Or better still, a towel."
Variety critic Russell Edwards called the film "slow-moving" and "glossy." "[It] doesn't just tug on the heartstrings but uses them to drop anchor in a sea of schmaltz." ==Festivals and awards==