The film is much more famous than the novel. The reason why the film version of "Lust, Caution" is so eye-catching is mainly because Ang Lee hit the soft ribs of modern people, turning a movie into a Chinese version of an AV, and even cast the renowned Emperor Jing, Tony Leung, to play in it. Imagine, how can those poorly-made A-porn films and their actors who only know how to take off clothes compete with professionals?