Dame Gladys Cooper’s remarkable seven-decade career, spanning stage and screen, left an indelible mark on cinematic history and holds particular appeal for physical media enthusiasts. Her transition from Edwardian theater to Hollywood in 1940 solidified her as a formidable character actress, gracing some of the golden era's most beloved films. Collectors particularly covet titles like Alfred Hitchcock's *Rebecca* (1940), where her chilling performance as Mrs. Danvers’ successor provides crucial atmospheric tension, making the film a consistent highlight in any gothic drama collection across VHS, DVD, or Blu-ray. Her impressive range extended to classics like *Now, Voyager* (1942), *The Valley of Decision* (1945), and *The Bishop's Wife* (1947), each offering a distinct facet of her dramatic prowess. Cooper earned three Academy Award nominations, with the final nod coming for her iconic portrayal of Mrs. Higgins in *My Fair Lady* (1964). This legendary musical, often seen as a benchmark for picture and audio quality on 4K UHD, showcases her final big-screen triumph. Collectors seek out Cooper’s work not just for her captivating performances, but as essential pieces of Hollywood's golden age, preserving a truly legendary talent across all formats.