The Film record will use the contribution of a Work authority from MMI
Mockup
Connection between Films and Documents would be reversed from XDB/CineFiles. Instead of entering Document (Cataloging) relationships on this screen, there would be a field on Cataloging for "Related Films". On the Work screen, the related Documents would show up in the right side panel under "Used By"
Addition of Film Themes repeating group is on the gaps document but is probably useful. Themes would be another Concept vocabulary. This would involve some data work to create the mapping between Films and Themes.
Need to get values for Work Type dropdown. Is this a dynamic list?