How is Netflix not at the mercy of major movie studios? Their originals, while popular, are not a proven business model. No tech company to my knowledge has pr

How is Netflix not at the mercy of major movie studios? Their originals, while popular, are not a proven business model. No tech company to my knowledge has proven that taking content 'in house' improves the bottom line, yet. Pandora attempted to get into tickets and I don't think that went well although I am not sure a true stratechery style analysis of that has ever been done to my knowledge.