other went to Pillow Talk. The film—and Lehman specifically—also won a 1960 Edgar Award for Best Motion Picture Screenplay. Hitchcock received his second Silver Shell for Best Director award at the San Sebastián International Film Festival. (He was also awarded the Silver Shell the year before for Vertigo.) In 1995, North by Northwest was selected for preservation in the National Film Registry by the United States Library of Congress as being "culturally, historically, or aesthetically significant." In June 2008, the American Film Institute revealed its "10 Top 10"—the best 10 films in 10 "classic" American film genres—after polling over 1,500 people from the creative community. North by Northwest was acknowledged as the seventh-best film in the mystery genre. It was also listed as No. 40 in AFI's 100 Years...100 Movies, No. 4 in AFI's 100 Years...100 Thrills, and No. 55 in AFI's 100 Years...100 Movies (10th Anniversary Edition). Themes and motifs Hitchcock planned the film as a change of pace after his dark romantic thriller Vertigo a year earlier. In his book-length interview Hitchcock/Truffaut (1967) with François Truffaut, Hitchcock said that he wanted to do "something fun, light-hearted, and generally free of the symbolism permeating his other movies." Writer Ernest Lehman has also mocked those who look for symbolism in the film. Despite its popular appeal, the film is considered to be a masterpiece for its themes of deception, mistaken identity, and moral relativism in the Cold War era. The title North by Northwest is a subject of debate. Many have seen it as having been taken from a line ("I am but mad north-north-west: when the wind is southerly I know a hawk from a handsaw") in Hamlet, a work also concerned with the shifty nature of reality. Hitchcock noted, in an interview with Peter Bogdanovich in 1963: "It's a fantasy. The whole film is epitomized in the title—there is no such thing as north-by-northwest on the compass." ("Northwest by north", however, is one of 32 points of the compass.) Lehman states that he used a working title for the film of In a Northwesterly Direction because the film's action was to begin in New York and climax in Alaska. Then the head of the story department at MGM suggested North by Northwest, but this was still to be a working title. Other titles were considered, including The Man on Lincoln's Nose, but North by Northwest was kept because,