Neither are the things in question, the resources for movie making are not public, crew isn't public, actors aren't public. It's not a public resource in any way.
More importantly: money that is not in circulation doesn't affect you or me, it has the same weight on the economy as all the gold still not mined.
Also moving money from your left hand to your right is not circulation. It should "trickle down". Wonder where I heard this.