The best account I can find of the Senate inquiry into the torture scenes appears Jan. 3 in the Los Angeles Times, by Ken Delanian and Steven Zeitchik, here. Contrary to urban legends and rumors, Sony does not appear to have made any cuts or changes because of the controversy. Sony says it delayed worldwide release until Jan. 11 to avoid too much competition (with "Miserables" ant others) Christmas week, and to write down marketing expenses in 2013.
The feature at Angelika was preceded with a three minute short film from Hulu, "The Invisible Bicycle Helmet" (Frederick Gerkin), about an innovation from a young woman in Germany about a bicycle helmet that acts like an air bag. There were only two previews (thankfully). ZDK runs 157 minutes.
Update: May 11, 2015
Peter Bergen discusses Seymour Hirsch's claims about the hit on OBL here.