Thanks for the link janeainsworth. I don't think it was a particularly good decision but, as the boy's mum said, it was his decision and it was meant to be a "tongue in cheek" joke. The boy hadn't read the book or seen the film but, as she said, there had been a lot of media coverage, including jokey remarks about nipping off to Homebase to get a supply of ties (restraints).
I have not seen the film or read the book. From what I have read, I have no wish to do either.
However, I do think there's an awful lot of hypocrisy about this. There was huge coverage of the book and the film (simply because it was making a lot of money) and it would be unlikely that any young person was not aware of this.
I agree with the mother that James Bond is in no way a suitable alternative. Recent analysis by psychologists suggests that his behaviour is indicative of psychopathy - and the way young women are treated in the books and the films is not very respectful.
I personally would have discussed this matter with my son, acknowledging that whilst he was approaching the subject in an amused, ironic sort of way, it may not be interpreted by others like that, and the book was seen by many people as demeaning of women.