As we mentioned last week, Warner Brothers had a secret - they were opening advanced ticket sales to the Warner Brothers Studio Tour London - The Making of Harry Potter three days early via their official website.
Those advanced tickets went on sale early this morning and were completely sold out in only two short hours according to their official Facebook page.
Ticket sales to the general public will be on sale effective Thursday morning at 9:00 am BST and Warner Brothers is predicting that there will be around 5,000 visitors taking the 3-hour tour each day when it opens on March 31, 2012.
You can read MuggleNet's exclusive report of the tour from Staffer Nick, right here.
Are you planning a trip to see the sets that made the Harry Potter film franchise so successful? Let us know in the comment section below.