It's hard to make a movie of Lolita, because everything you see in a movie is seen as the truth. Lolita is filled with a mixture of fantasy, lies and truth, and it's up to the reader to sort them out. It takes more than one reading to figure out if Lolita is really the girl Humbert Humbert describes, and whether he is just playing with your emotions to get sympathy. But in a movie, it's harder to show a shimmering veil of lies over the truth- what can you do? Intercut the fantasy with what's really happening? I'm not a filmmaker, so I do not know.