Vintage and modern cinema fans alike are already pumped for the opening of Hitchcock on Friday. It’s hard not to be&#8212a movie about a legend like Alfred Hitchcock is already an easy story to tell, but add in a cast that includes Helen Mirren, Scarlett Johansson, Danny Huston, Jessica Biel, Toni Collette, and Anthony Hopkins as the man himself, and you have yourself a recipe for a pretty entertaining 98 minutes. The plot&#8212penned by…