Who to Credit - DVD or Film
Many people can be involved in the production of a video and not all need to be listed in the citation. Typically the director, producer and/or writer are the names that are used. To clarify what role the person has in the production, their job title such as Director is put after their name in round brackets if the job title is known.
Who to Credit - Streaming Video from a Website
For videos from websites such as YouTube or Vimeo, credit the person who posted the content. If a real name is provided, use it. If the real name of the person who posted the content is not known, use their user name.