Our return to Hogwarts unleashed a chamber of secrets. For this list, we’ll be looking at details and behindthescenes facts from the “Harry Potter” reunion, some of which hadn’t been revealed before. Our countdown includes Daniel Radcliffe wrote a love letter to Helena Bonham Carter, Jason Isaacs originally auditioned for Gilderoy Lockhart, the Great Hall’s Floating candles were originally real, and more! What was YOUR favorite part of the "Harry Potter" reunion? Let us know in the comments!

Watch more great "Harry Potter" videos here:
Top 10 Saddest Harry Potter Moments https://youtu.be/ySeJIFsLlkk
Top 10 Craziest Harry Potter Details You Missed https://youtu.be/eyPRDwsjCJc
Top 10 Craziest Things J.K. Rowling Has Revealed About Harry Potter https://youtu.be/OUHEuXYQba4

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