Brolin's character of Mannix reports on the phone to studio chief Nicholas Schenck, who was his boss in real life as well. Schenck's brother Joseph was also a real-life movie executive, but at a different studio from the one in question 4. Joseph Schenck, along with his business partner and production chief Darryl Zanuck, founded what major studio in 1935, via the merger of two existing production companies?
TWENTIETH-CENTURY FOX