I can't believe I forgot to mention this:
They're filming at the library today! A real movie -- Syriana starring George Clooney and Matt Damon. They're using the Board Room here at the library for filming, so there are a ton of people on the second floor near the administrative offices. They've even got a food table set up outside the offices, near the entrance to Fine Arts -- and there are black suited private security guards guarding the food. (I'm assuming they're keeping people out too, but it's better to think of them guarding the food from the type of patrons you get in a downtown library.) So, if you see Syriana, look for the Board Room!