When referencing a movie, follow the citation with the producer’s surname and the director's surname with an ampersand and the movie’s date, after by a comma; enclose the entire citation within parentheses. If the film has two producers, give both surnames. If there are three to five producers, list them all on the first reference, but on subsequent references, list only the first one, followed by et al. If the film has six or more producers, use the first listed producer and et al. on all references.
A citation for “Throne of Blood,” which has two producers, one of whom is also the director, would look like this: (Kurosawa & Motoki, 1957). A citation for “The Secret of Kells,” however, would look like this, because the film has seven producers, including the director: (Brunner et al., 2009). If the director is also a producer, you do not have to list that name twice.