Question: Which company, headed by Thomas Tull, produced the 2013 film that was the first installment in the DC Extended Universe?
Sentence (from "Man of Steel (film)"): The film is directed by Zack Snyder, written by David S. Goyer, and stars Henry Cavill, Amy Adams, Michael Shannon, Kevin Costner, Diane Lane, Laurence Fishburne, Antje Traue, Ayelet Zurer, Christopher Meloni, and Russell Crowe.
Relevant evidence: No