David Morris

The Collector's Edition DVD of the 1929 Silent Film 'The Secret Adversary' based on the novel by Agatha Christie features both English intertitles and subtitles for the first time ever. With a dynamic synchronous classical score, a new opening reel and bonus material, this Collector's Edition region-free NTSC DVD now makes the film accessible to a broad audience.

For fans of Agatha Christie, watching film adaptations of her works is an activity enjoyed by most. Many fans also choose to build a personal library of her film and television adaptations. Some collectors also pursue film-related ephemera – from posters and lobby cards to soundtracks and other memorabilia. This new article looks at the 1920s adaptations and a new 'Collector's Edition' of the 1929 silent film, The Secret Adversary.

Two auctions in July 2026 featured a combined 14 lots of Agatha Christie books - with prices ranging from £165 to £7,610 (apprx. $200 - $10,000). My new post-sale review provides details into all the lots, comments on prices realised, collecting tips and insights into where the market for Christie collectibles is likely heading.