Each night Fort Wilderness hosts a campfire (yes, bring your marshmallows), sing along and enjpy a Disney movie in the Meadows area. For those who do not have marshmallow, a "smore kit" is sold at there. This is free, and you do not have to be staying at the "Fort" to attend. While benches are available, for comfort you may want your own chairs Adult beverages are allowed, so bring them along or buy them there. At the beginning of the month the movie schedule is posted, so check out what is playing during your trip.
This activity is held every night, weather permitting. When you check in ask about the time as it changes seasonally due to the differences in sunset. The number of people in attendance changes with the occupancy level of the campground and the popularity of the movie playing.