Who to Credit - DVD or Film
Many people can be involved in the production of a film but not all need to be listed in the citation. Typically the director is the only name that is used. If the director is unknown, give credit to someone in a similar role (producer/writer/host etc.). Their job title (such as Director) is put after their name in round brackets to clarify what role they had in the film production.
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 that followed by the person's user name in square brackets. If the real name of the person who posted the content is not known, just use their user name without brackets.
Who to Credit - TV Series and TV Series Episode
When citing a whole TV series, credit the executive producer(s). When citing a single episode from a TV series, credit the writer and the director of the episode. For both series and single episodes, include their job titles after their names in round brackets.