Harry Potter Update

‘Deathly Hallows’ film Breathes Life into Harry Potter Book Sales | Nielsen Wire: "Harry Potter and The Deathly Hallows, Part 1, the seventh—and penultimate—movie in the Harry Potter series, opens November 19, nearly nine years after the first film debuted and more than a dozen years since the arrival of J.K. Rowling’s first Harry Potter book. The release of each Potter film has coincided with a sales boost for the books series, although the jump in sales has decreased substantially with each subsequent movie release."

Sales graph at the link.