-"Remembering when the first Harry Potter movie came out, nearly eight years ago, and looking at these posters now really gives some perspective on how much the actors have aged through their years in life and in the school of Hogwarts."
Dumbledore showed Harry the complete Mất tích Prophecy. We learn that Neville could also have been the Chosen One. Dumbledore tells us this, and then insists it could only have been Harry. Why mention it then, in the first place?