Every production assistant, intern, receptionist, runner and/or other member of Hollywood’s aspirational poor can rejoice today as Bourne franchise and United 93 director Paul Greengrass held forth on the biggest unresolved scourge afflicting the film industry today. No, not piracy. No, not the Golden Globes . Greengrass has it out for the exploiters who are “raping and pillaging young people” for the sake of a few budget savings here or there. Bold! [. . .] The filmmaker participated in the Dunhill conversation series opposite actor David Morrissey who elicited the following response with a simple inquiry about Greengrass’s early days in documentary: One of the problems we have in our industry is that young people in our industry are being exploited. There are companies in London, sadly, that are making very good livings on “work experience” — which really means people being expected to work for nothing. And if we — we in the industry who’ve had good livings think that we a...