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Who could forget the lovable yet awkward Neville Longbottom, played by Matthew Lewis? Starting out aged 11 in "Philosopher's Stone," Matthew has had the most dramatic on-screen transformation. So what's in store for Neville in "Deathly Hallows?" The awkward wizard stays at Hogwarts to hold down the fort, getting in some fierce battles in the process.

Harry Potter: Then and Now

With "Harry Potter and the Deathly Hallows Part 1" in cinemas this week, we decided to take a look at the actors then and now.