Hollywood's first AI-made movie claims it turned a $300M production into a $70M one. The man behind that claim already ran this exact play once. It ended in two bankruptcies. Doug Liman shot "Bitcoin" in 20 days inside a former car showroom in West London. No built sets, no lighting rigs, just a gray box, because blue and green screen tests came back worse for the AI. Gal Gadot, Casey Affleck, and Pete Davidson acted against blank walls while the environments get generated in post. The…