Helena Bonham Carter's magical morphing in 'Harry Potter and the Deathly Hallows'

helena-bonham-carter-zap2it.jpg The Dish Rag chatted exclusively with a jet-lagged Helena Bonham Carter last weekend about big heads, the Mad Hatter, working with Johnny Depp and all things "Alice in Wonderland."  

More on that soon. But here's what she had to say about becoming 17 again in the upcoming "Harry Potter and the Deathly Hallows."