WEconomics : Italy / a film by Melissa Young, Mark Dworkin. (OCLC #944445213)

The LC-PCC PS for RDA 18.5 Relationship Designators says to follow the PCC Training Manual for Applying Relationship Designators in Bibliographic Records, and to record terms MARC 1XX/7XX subfield $e, $i, or $j as appropriate.

The manual includes guidelines such as recording relationship designators for all access points whenever it is clear what the relationship is, as in:

    700 1_ ǂa Dworkin, Mark, ǂe film director.

and examples of what to do when more than one relationship designator is appropriate, as in:

    700 1_ ǂa Young, Melissa, ǂe film director, ǂe film producer.