Attend to your configuration folks, as we're about to gaze upon Flatland from our lofty third dimension. Eating three-dimensional pizza and popcorn, drinking soda out of three-dimensional cans.
Basically, free pizza, popcorn movie and drinks. A little less basically, a damn interesting movie and really delicious free pizza, popcorn and drinks. Just come already!
Fun fact: it's illegal to colour yourself in Flatland because it messes with other people's depth perception. For more detailed explanations, read the book by Edwin A. Abbott!