At the time the film was released, the ratings system was not in effect and the Hays Code, dating back to the 1930s, governed movie production. The censorship of the time inhibited Kubrick's direction; Kubrick later commented that, "because of all the pressure over the Production Code and the Catholic Legion of Decency at the time, I believe I didn't sufficiently dramatize the erotic aspect of Humbert's relationship with Lolita. If I could do the film over again, I would have stressed the erotic component of their relationship with the same weight Nabokov did." Kubrick hinted at the nature of their relationship indirectly, through double entendre and visual cues such as Humbert painting Lolita's toes. In a 1972 "Newsweek" interview (after the ratings system had been introduced in late 1968), Kubrick said that he "probably wouldn't have made the film" had he realized in advance how difficult the censorship problems would be. The film is deliberately vague over Lolita's age. Kubrick commented, "I think that some people had the mental picture of a nine-year-old, but Lolita was twelve and a half in the book; Sue Lyon was thirteen." Actually, Lyon was 14 by the time filming started and 15 when it finished. Although passed without cuts, "Lolita" was rated "X" by the British Board of Film Censors when released in 1962, meaning no one under 16 years of age was permitted to watch. Humbert uses the term "nymphet" to describe Lolita, which he explains and uses in the novel; it appears twice in the movie and its meaning is left undefined. In a voice-over on the morning after the Ramsdale High School dance, Humbert confides in his diary, "What drives me insane is the twofold nature of this nymphet, of every nymphet perhaps, this mixture in my Lolita of tender, dreamy childishness and a kind of eerie vulgarity. I know it is madness to keep this journal, but it gives me a strange thrill to do so. And only a loving wife could decipher my microscopic script." The adaptation of the screenplay is credited to Nabokov, although very little of what he provided (later published in a shortened version) was used in the film itself. Nabokov, following the success of the novel, moved out to Hollywood and penned a script for a film adaptation between March and September 1960. The first draft was extremely long—over 400 pages, to which producer Harris remarked "You couldn't make it.