Everybody knows that Thanksgiving “weekend” is probably among the best five days in the Washington, DC calendar. People come home for the holiday from wherever they have dispersed to and everybody heads out to clubs and bars – sometimes even those that might be off-puttingly packed with khakied-and-ballcapped transients during the rest of the year.
As for what to do during the day time to amuse yourself and family as people get progressively snippier with each other around the house, how about something that is pleasant and edifying (probably more than can be said of most of the movies you were thinking about)?
My top suggestion is that you remember that all Smithsonian museums are open every day except Christmas. That means they are all open on Thursday for your pre-meal perusal. Try visiting one you have put off before, or go back to a favorite knowing you will have the peace and quiet to really pay attention to the pieces you love. Check out the new Kogod Courtyard at the Reynolds Center. Go to the zoo!