Mark Estrin (1947–2005) was an American screenwriter, producer, and later a vintner, best known for his collaborations with his brother, Allen Estrin, in television and film. Born on October 23, 1947, Estrin began his career in the entertainment industry, contributing to various scripts and adaptations. He and his brother co-wrote episodes for the television series 'The South' in the 1980s and penned the screenplay for the 1986 film 'The Ladies Club', a comedy-drama directed by A.K. Allen. Their work often explored dramatic and social themes, drawing from adaptations of plays and original storytelling. Estrin's writing style was noted for its wit and character-driven narratives, though he remained a relatively low-profile figure in Hollywood. In the later years of his life, Estrin shifted focus from screenwriting to the wine industry, establishing himself as a vintner in California. This transition reflected a personal interest in viticulture and entrepreneurship outside of media. He passed away on April 23, 2005, at the age of 57, leaving behind a modest but impactful legacy in both entertainment and agriculture. No major controversies or legal issues are documented in his public record, and his influence was primarily within collaborative family projects in the arts.