I liked the film when I saw it a year or two ago.
The point of the film? Probably the same reason all other movies are made, to entertain us and/or give us a look into the ways of a killer. Yeah it's disturbing but then a lot of movies are and some of them aren't bad. Can't think of one off the top of my head though.
Hello. I came to talk. I've been thinking lately. About you and me. About what's going to happen to us, in the end. We're going to kill each other, aren't we? Perhaps later. I just wanted to know that I'd made a genuine attempt to talk things over and avert that outcome. Just once... I don't fully understand why ours should be such a fatal relationship, but I don't want your murder on my ... hands...
- The Killing Joke