Expand the Music PoC to include Movies, so that we can see how the approach that we took with songs scales to other domains.
Timebox: 5 days
Linked to: https://phabricator.wikimedia.org/T348238
**Acceptance criteria**
When I'm searching for an actor in the Structured Contents Use case, I can see the list of movies for that actor //(we understand that the display will work only for a certain set of Wikipedia pages, not trying to deliver a perfect algorithm here)//.
**To-Dos**
[ ] create a schema for `Movie` (we can use [schema.org](https://schema.org/Movie) for it)
[ ] enhance the current schema to see what fields we need to add to the `Person` schema (we have developed it in the Music PoC)
[ ] enhance the UI to include the list of `Movies` if a person is an actor
[ ] Documented approach and issues found for evaluation