They go to some pretty incredible lengths too, A friend of mine and his dad own a stunt company that works explicitly with semi-trucks. Pretty much every time you see a semi in a stunt in a movie it's either my friend or his dad driving it. They will ship these semi's to foreign countries instead of film locally because the tax incentives are greater than moving entire production companies around the world.
1. City/region becomes a boom-town based on a new high profit-margin industry
2. As that region becomes more wealthy, labor increases in price, thus there is more incentive to seek labor/resources for that industry outside the city/region
3. City/region hollows out of middle-class level jobs for the industry, retains ceremonial labor and executive offices.