The Lady Vanishes (Blu-ray)

In Alfred Hitchcock's most quick-witted and devilish comic thriller, the beautiful Margaret Lockwood, traveling across Europe by train, meets a charming spinster (Dame May Whitty), who then seems to disappear into thin air. The younger woman turns investigator and finds herself drawn into a complex web of mystery and high adventure. Also starring Michael Redgrave, "The Lady Vanishes" remains one of the great filmmaker's purest delights.