In a new interview Robbie Coltrane briefly discusses the Harry Potter series.

Why do you think the Harry Potter film franchise has been so hugely successful?
“There is so much in the books and films. People always ask me why they’re so popular, and it’s because JK Rowling has very carefully not made them fashionable or trendy. No one is playing on the Wii or listening to an iPod. The stories are about friendship and trying to be true to yourself and be popular – the stuff we all go through as teenagers.”

Do Harry Potter fans approach you in the street?
“Because I’m bearded up as Hagrid, kids generally don’t recognise me. I very much appreciate that anonymity – especially when you see what happens to Alan Rickman, who plays Snape. He gets kids hissing at him in airports! But when kids do recognise me, they go all doe-eyed, which is great.”