Any Potter fans worried about new director Alfonso Cuaron, fear not!
Chris Columbus, who directed the first two in the series, has said he's a massive fan of what Alfonso has done.
He praised Harry's first ride on the hippogriff Buckbeak, and the attack on the train by the Dementors. He said: "It's such a beautifully-directed scene.
"I keep thinking about those scenes constantly and how proud I am to be involved in them, but mostly how wonderful a job Alfonso has done."