Forbes – Slumped in white oversize chairs in an enormous suite at the Hotel Bel-Air in Los Angeles, Australian casino billionaire James Packer and Hollywood movie director Brett Ratner are exhausted. They look like two hungover frat boys after a hard night—but these guys haven’t been partying. They’re jet-lagged after visiting Russell Crowe’s film set in South Australia, watching Chinese tennis star Li Na win the women’s Australian Open in Melbourne and toe-touching in the Philippines to open Asia’s first Nobu restaurant at a new casino resort in Manila. It sounds like a pleasure cruise from Packer’s earlier life as…