Was this movie funny???

Rating: 9/10 (8 August 2006)

I just saw this film and the guy behind me was giggling to himself at every horrific scene in the film. Even at the high water mark of the film, when Sarah learns the extent of Juno's shady, cowardly and dangerous behavior, and then has to kill her best friend to keep her from being eaten alive ... the guy behind me kept giggling. I had to turn to him and say "how is that funny?".
Maybe it's a coping mechanism of his. I know it's a movie, but there was nothing funny about any of the stuff he was giggling at. We have some pretty sick or twisted people.
Now, did anyone else find this movie funny?