Very little of Hollywood's work can be done remotely. Even the parts that can are essentially protected by that network that can't, they are so intertwined. Also Hollywood has a substantial moat that prevents an indie studio in Tulsa from having access to the same distribution network, etc.
Not suggesting that "big tech" doesn't have advantages, but overall, there's an entire world of software development outside of those companies where developers can contract, compete from other countries, and companies are free to hire all sorts of contract labor free of control. You don't even need a college education to do most of the work in our industry.