Emma WatsonMy, how she's grown!

Emma Watson arrived at today's much anticipated UK premiere of 'Harry Potter and the Deathly Hallows, Part 2' in this stunning tulle, floor length, gray gown and we can't help but look on in awe at the magical transformation this young superstar has made.

It was November 4, 2001 when the starry-eyed Watson first stepped out for the world premiere of 'Harry Potter and the Philosopher's Stone' in Leicester Square in London, wearing a very modest, purple-ish dress and feathered boa. Who knew the then virtually unknown star would turn into a film and fashion icon for the 'Harry Potter' generation.

Fast forward almost 10 years and we arrive to today, where the same little girl who portrayed the precocious Hermonie Granger has blossomed into a grown up, fashion-minded, 21-year-old starlet.