Producer, A. A. (Producer), & Director, B. B. (Director). (Year). Title of motion picture [Motion picture]. Country of Origin: Studio.
Jackson, P. (Director & Producer), Cunningham, C. (Producer), Weiner, Z. (Producer), & Walsh, F. (Producer). (2012). The Hobbit: An Unexpected Journey [Motion picture]. United States: New Line Cinema.
In-text: (Jackson, 2012)
Instead of an author, list the primary contributors for the film, which are usually the director(s) and producer(s).