Interstellar may take place in a galaxy far, far away, but it's no Star Wars. Big Hero 6 may be about a group of superheroes, but they're not The Avengers. And, that's a good thing, at least for the future of the real world.
Once you're done unwrapping the gifts and singing the carols and observing whatever expressions of faith you feel are appropriate for the time (if any), you may want to reinforce the communal feeling with a visit to the cinema for something the whole family can enjoy.
Seeing it as a parent, I appreciated it even more, literally stopping the film about a dozen times to point out a scene or some piece of dialogue. If you are a parent, watch this movie with your child. You won't regret it.