I really want there to be more places in Ur with things to do rather than just gather resources. Someone else has suggested a library which I think is a great idea. It occurred to me that a movie theater could be fun.
There could be badges or quests associated with seeing the movie. There could either be specific showtimes (based on the Ur clock) or a certain number of people in the movie theater could trigger the movie to start. You could get a badge if you saw a movie with a large group of people or the movie could be the start of a quest -- but a large number of people all have to be there at the same time to see it; too few people in the audience and the quest wouldn't trigger. The quests might also require people to do things together.
You would need to buy a ticket. The race ticket machines could sell them. Inside the movie theater there should be a vendor that sells snacks and drinks–things that other vendors don't sell (because certain things are movie food, right?).