Ten years and eight films later, Harry Potter is nearing its end.

And at Thursday's Harry Potter and the Deathly Hallows: Part II premiere in London's Trafalgar Square, Emma Watson admitted that the event was bittersweet.

The 21-year-old actress, who made a name for herself as the brainy Hermione Granger in the first Potter flick, said, I will really miss Rupert [Grint] and Dan [Radcliffe]. I'll just miss being Hermione. I just love being in her world. How can you top this? Watson said.

Decked out in an Oscar de la Renta ball gown, Watson held back tears as the crowd began to chant her name. Addressing her fans directly, she said, It's overwhelming to try to find the words to say what I want to say, but I have been so privileged to play this role and be a part of these films, she said. Thank you so much for all of your love and support, and for embracing all the work that we did. I've had the most amazing 10 years of my life. Thank you so much.

And, like Watson, J.K. Rowling, the author who gave life to the Harry Potter franchise in the first place, was visibly moved. How can I be anything other than very, very emotional? This is incredible, Rowling said. The fans have given me so much. I have to say thank you. Who could have asked for more?

The final Potter flick premieres July 15.