It's one of my favourites, though I haven't finished it. Didn't know there was a novel though. I discovered it more or less accidentally - I was volunteering at a convention, got placed in the viewing rooms on the overnight shift, and it was one of the things playing in our room that night. It's been about a year since I watched it so I don't even remember what the funniest bit was. I'll have to start over when I get back to watching it again.