I'm not sure what the dynamics are of your family, but I'd send the kids and skip the movie if it was something I didn't want to see (another non-fan of The Hobbit here.) Movies are too expensive, and lately I've been trying to skip the theater at prime time anyway because too many people are rude and distracting during the film, so i try to go on weeknights or Sundays, late, etc. I used to do a movie on xmas with my friends when we were in college but that was 20 years ago. Nowadays, I skip the movies on xmas, it's just too crowded and not as much fun.