Chris: I was a bit concerned so I tested it out on some kids in Chicago aged seven to 13. When I asked them if they found it scary, none of them put their hands up. They all put their hands in the air when I asked if it was exciting!
My five-year-old daughter didn't find it scary either. In fact my 38-year-old friend was far more frightened! The only thing I'd say is if you're really scared of spiders, you might not like it very much.
Dobby is much uglier than people expected. How did you develop him?
Chris: Dobby's had a really difficult life as a servant so he'd hardly be cute and cuddly. You have to fall in love with his inner character.
I didn't want him to turn out like a certain other CG character who turned out to be really annoying. (Who can you be talking about, Chris?!?)
What was your favourite scene?
Dan: The duelling scene with Lockhart and Snape, and I love the scenes with the big crowds in.
Rupert: I liked the slug scene best. They actually tasted really nice coz they were all different flavours - chocolate, peppermint, orange and lemon!
How do you make sure there's not too much pressure put on the children?