A young Daniel Radcliffe stars as Harry Potter in “Harry Potter and The Sorcerer’s Stone,” which premiered in 2001. Peter Mountain/WireImage cover caption toggle caption Peter Mountain/WireImage A younger Daniel Radcliffe stars as Harry Potter in “Harry Potter and The Sorcerer’s Stone,” which premiered in 2001. Peter Mountain/WireImage The movie that brought the wizarding earth to existence — from Hogwarts to Hedwig to He-Who-Ought to-Not-Be-Named — is now 20 years previous. “Harry Potter and the Sorcerer’s Stone” premiered on Nov. 16, 2001, 4 a long time immediately after the series’ 1st e book strike the shelves. Seven books, 8 videos, many topic parks, tens of millions of ebook product sales,…