Regardless, it's all prelude for the massive showdown that awaits in the film's second half. There have been teasers about a bold plot twist — and we wouldn't dream of spoiling it here because watching it play out with a packed and rabid audience is a complete kick — but Condon and screenwriter Melissa Rosenberg have taken a big risk in deviating from the book, and it pays off big-time from a narrative perspective. It's kind of amazing that this thing got a PG-13 rating.