Hollywood is what Hollywood is largely due to its geography. Within a ~4 hour drive of Hollywood its possible to get to an area of california that looks at least passingly (for the purpose of movie making at least) similar to more or less anywhere in the world.

This isn't the map i was looking for, but gives you the basic idea https://brilliantmaps.com/california-filming-map/. The Geographic diversity around Hollywood is absolutely responsible for its initial success.