Film title. Dir. First Name, Last Name. Distributor, Year of Release. Medium.
Magnum Force. Dir.
Ted Post. Warner Bros., 1973. Film.
Reiner, Rob, dir. This is Spinal Tap. With Christopher Guest, Michael McKean, Harry Shearer, and Rob Reiner.
Original story and script by Christopher Guest, Michael McKean, Harry Shearer, and Rob Reiner, Metro-Goldwyn-Mayer, 1984.
Both ways to document movies are correct. The first example makes the emphasis on the movie, whereas the second
example makes the emphasis on the director. Whichever is the emphasis of your paper will determine your choice.