sentences:  Director Todd Miller's documentary "Dinosaur 13", which is about Sue's discovery and subsequent legal actions, appeared at the 2014 Sundance Film Festival.In 2015, an episode of NPR's "Planet Money" discussed the acquisition of Sue from a financial and legal perspective.The personified dinosaur, through Sue's official Twitter and Field Museum press releases, uses the singular "they" pronoun as the specimen's sex has not been determined.