KatieMiddleton
Yep, it's all about what can lie beneath the surface of a person. Humbert Humbert is outwardly such a respectable product of the patriarchy. It's particularly frightening to see how he uses language to manipulate the other characters and the reader (to an extent).
I have to say though that the films are a real problem for me. As pointed out already, with Kubrick's film the studio forced 'Lolita's' age to be increased to 14 - cos that would be less disturbing! Also, the casting is a huge problem. In the book, Nabokov makes you sympathise with Lolita's mother but by casting Shelley Winters who plays her as an annoying, awful woman the film you are encouraged to side with Humbert Humbert who regards her as an stupid, vulgar idiot that he can deceive (is justified in deceiving) in order to get to Lolita. We see Shelley Winters not from Humbert's point of view but from the camera's. It's totally different, as if we are neutral observers who can see that she deserves what is coming to her. James Mason is in many ways ideal as Humbert (charming, cynical, intelligent) but by being cast opposite Winters (who is really playing it very unsubtly and large and is made up to look much less stereotypically attractive than Mason and her screen daughter) he becomes more sympathetic than in the book. It's just a disturbing film.
The Adrian Lyne version, filmed decades later, with less restrictions, in a time of greater awareness of the issue is even worse. Sexist male fantasy.
I was surpirsed to watch a 1965 Sam Fuller film, 'The Naked Kiss' in which the fiancee of the central female character is revealed to be a child abuser. It is clearly shown to be appalling (to the extent that she kills him when she discovers him with a child), and seems to try and push the censorship limitations as far as possible. It was made three years after Kubrick's Lolita but is quite different in its treatment of the issue.