The official Harry Potter Wizard's Collection website unlocked a behind-the-scenes clip from Harry Potter and the Sorcerer's/Philosopher's Stone, where director Chris Columbus is shown giving specific instructions to Daniel Radcliffe, Rupert Grint, and Emma Watson on how they should react and respond to Professor McGonagall about the elusive Philosopher's Stone. That clip, to be featured as one of the extras of the 31-disc DVD/Blu-ray/Ultraviolet set, out September 7, 2012, can be viewed below.





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