"Agatha Christie is the best-selling fiction author of all time, and anyone who has spent a few hours behind the pages of one of her books understands why: her capacity for surprising the reader, for turning narrative expectation on its head, is nearly unsurpassed. As her biographer Laura Thompson put it, Christie is "a monolith, a phenomenon"; her legacy looms large over every single mystery writer in the world today and even beyond. Serious literary criticism has contented with her as well, and some of her most celebrated work has been lauded in "Best Books of the Century" lists from respected vehicles.
No wonder she is, to this day, so immensely popular and addictive. To those looking to get a little quick fix of Christie in their lives, there have been many good adaptations of her novels on the big screen, as this list will show (to be clear: only cinema releases were considered, so all made-for-TV movies are not included)."