Harry Potter is back and in FULL effect! The new movie "Harry Potter and the Half-Blood Prince" took in $79.5 million domestically over opening weekend and $159.7 million since debuting last Wednesday. This past 5 days has made "Harry Potter and the Half-Blood Prince" the second-highest start ever for a movie premiering on Wednesday, trailing the $200 million five-day opening for last month's "Transformers: Revenge of the Fallen."J.K.Rowling is somewhere smiling!