Finally we can start talking about something other than "the force" and how a guy in New York had his name legally changed to Darth Vader. "In the Heart of the Sea" is opening this weekend, and it's an adventure story on a whole other level, involving a killer whale instead of aliens. Set in 1820 and starring such notables as Ben Whishaw in the role of Herman Melville and Brendan Gleeson as his interviewee, Tom Nickerson, this is being promoted as the inspiration behind Melville's masterpiece "Moby Dick."