any movies made on him?
Yes, in 1998, Rowling sold the film rights of the first four "Harry Potter" books to Warner Bros.
Harry Potter
In 1998, Rowling sold the film rights of the first four "Harry Potter" books to Warner Bros. 
who died in the seventh harry potter book Mad-Eye" Moody and Hedwig who is this? UNANSWERABLE who is the person mentioned in the initial question? He is a fictional character and the titular protagonist in J.K. Rowling's series of eponymous novels.
wiki:6916920
Harry Potter [SEP] Films
In 1998, Rowling sold the film rights of the first four "Harry Potter" books to Warner Bros. for a reported £1 million ($1,982,900). Rowling demanded the principal cast be kept strictly British, nonetheless allowing for the inclusion of Irish actors such as the late Richard Harris as Dumbledore, and for casting of French and Eastern European actors in "Harry Potter and the Goblet of Fire" where characters from the book are specified as such. After many directors including Steven Spielberg, Terry Gilliam, Jonathan Demme, and Alan Parker were considered, Chris Columbus was appointed on 28 March 2000 as the director for "Harry Potter and the Philosopher's Stone" (titled ""Harry Potter and the Sorcerer's Stone"" in the United States), with Warner Bros.