It took about 17 minutes into the Cannes Film Festival press conference for tonight’s out of competition premiere of Money Monster for star and co-producer George Clooney to deliver the line that inevitably will be lighting up Twitter — especially notorious tweeter Donald Trump’s account. In answer to a question about whether his hot-button movie about crooked financial doings is a cautionary tale or harbinger of things to come under a potential President Trump, Clooney…