No, why would the finance team care for the cover of a movie or the available subtitles? If everyone would have the same definition, changing some thing about a movie will need a change in every consumer who doesn't actually care.

No, because context and use defines the meaning. To the data team, a "Movie" might mean a file on disk. To the finance team, a "Movie" might mean a contract to a studio. To the Customer, a "Movie" is something they watch. That each of these contexts can use the term "Movie" does not actually mean they share anything in common. We could have called them "Files", "Contracts" and "Watchables" instead.

When people embark on 'universal' data definitions, conversations of the type "But is it reaaalllly a Movie??" are an endless source of confusion.

A unique identifier for a movie is the same thing, like an ISBN number. What the label means in each area is going to be different. That said, some things like "director", "budget" are immutable properties of a movie but are absolutely irrelevant for the business areas and the duplication of these properties in different domains is fundamentally not that big of a deal