It is my understanding that it is free. We drove to Fort Wilderness during Christmas. We parked and caught the disney buses up through the campground- Just stay on til you get to the area showing the movie. Just exit the bus at this stop and you can participate. We rode a little farther and got off the bus and took the wagon ride that went down by the lake and through the campground. We enjoyed this. There was a charge to take the wagon ride, but not the movie.