A lot of people talk about "Hollywood," but the term--and their terms of reference--are outdated.  Take Dunkirk as an example.  (A good one, as it's the movie that inspired a lot of Hollywood hooey--including some from the author of the piece.)

Dunkirk was made by an English film company, named Syncopy, Inc. It was founded and is still operated by two Brits, one of whom is the film's director, Chris Nolan.  Hollywood had nothing to do with its production.  

Los Angeles (or "Hollywood") did have something to do with its financing, however (the American film financing company, RatPac-Dune is in L.A.) and its distribution is through Warner Bros., which means a lot--without it, fewer would get to see it in theatres, and because Warners manufactures and distributes DVDs on its production and others, many wouldn't see the movie on disc later on.

Movie making, financing and distribution is--like so many other endeavours today--a GLOBAL business.  "Hollywood" is an archaic term.