“Gone Girl” graces movie-goers with Affleck’s bare booty (and partial insanity)

Warning: some spoilers ahead.  Unless you’ve been living under a rock these past few weeks (or binge-watching the last season of “How I Met Your Mother” on Netflix – totally not judging), you know that the highly anticipated book-turned-movie, “Gone Girl,” was released this past weekend. For those who read Gillian Flynn’s book and for…