A Clockwork Orange - "I was cured alright!"

At the end of the film, Alex is effectively reversed of his treatment, and this combined with the uplifting music, creates almost a sense of relief, whereby we again share Alex's feelings of happiness, as we realise he is once again the ultra violent character which he was originally. The reason we feel happy with this, is simply as the character we aligned with throughout the whole film, is one of ultra violence and rape, and we have empathised with him throughout the film, through his treatment also. Therefore, when we see him effectively un-cured we feel happy and relieved that the original character is back, and that if he is happy then we are too. Overall, it is the depiction of violence as enjoyment which is returned at the end of the film, a depiction which we have been encouraged throughout the whole film to adopt, in the form of a character which we gave our allegiance to.