Publication Manual of the American Psychological Association, 7th ed.The 9th edition of the MLA Handbook was published in 2021. In this update, the format for both in-text and Works Cited citations is the same as the 8th edition. The 9th edition also includes this clarification on citing a film/DVD.
A film/DVD:
Generally list film directors as key contributors in the Contributor element
Blade Runner. 1982. Directed by Ridley Scott, director’s cut, Warner Bros., 1992.
MLA Handbook, 9th Edition by 
The Chicago Manual of Style, 18th Edition
A Manual for Writers of Research Papers, Theses, and Dissertations, Ninth Edition by Correctly citing information is an essential skill for any academic researcher. Our Major Citation Styles guide provides links to several online style guides covering the basics of correctly citing your sources.
It's often best to consult the official style guides when in doubt. Most ULS libraries will have copies of such popular citation style guides as the American Psychological Association, the Modern Language Association, or the Chicago Manual of Style.
The Chicago Manual of Style, 18th EditionMLA Handbook, 9th Edition by Publication Manual of the American Psychological Association, 7th ed.