We eventually put her to bed about 10 minutes in, but I have no idea what happened in the film as she was laughing so hard. I don't really know what it is about stop-motion animation that got her all giddy, but I couldn't hear any dialogue over her laughter. It was quite amusing.
It did get me to thinking though. What do children actually take in. I was worried that the darker undertones of the film would subconciously scar her for life, but I have a strange feeling now that all she would probably take in (if she watched the whole film) was the quirky animation, a talking cat and some other funny - hysterical - stuff happening on screen. Having said that, the spider woman that "Other Mother" morphs into kinda gave ME the creeps.
I don't really plan on making a habit of viewing R or even PG material with Em (we're happy with "In The Night Garden" at the moment), but her reaction did make me sit back and think.