I'd also be in favor of a rotation of vintage Mickey cartoons. Keep Steamboat Willie always playing, but cycle in different cartoons throughout the day as well, to help diversify the offerings.
Upgrade the projection system so that the cartoons are actually decent quality. Disney has HD masters of those shorts, they can pay for better projectors to give them the respect they deserve.
Some benches + Mickey Cartoons? I'd be grabbing ice cream from the Gibson Girl and spending at least 15 minutes or so there every trip when the sun's out and it's blistering hot outside.