We saw "It's A Bug's Life" the night we went, and had the best time!
The feeling is reminiscent of a Drive-In, since the screen is large, and seating is plenty. Smores kits are available for under $5, and include enough chocolate, marshmallows, graham crackers and roasting sticks for a family of four. They also sold drinks, hot dogs and popcorn. The fire ring is very closely supervised by CM's, and we felt very safe letting our young ones wander over to look and roast marshmallows.
No kids sat still for the whole movie, but that's the point! Mingling with other guests, enjoying the movie and fire, walking by the lake - it makes for a cheap, low-tech, low-key evening out!