"How American Airlines Got a Free Ride in 'Up in the Air': Airline, Hilton Hotels Trade Production Savings for Product Integrations in George Clooney's Latest Movie".
^ Hampp, Andrew (2009年12月14日). “How American Airlines Got a Free Ride in 'Up in the Air': Airline, Hilton Hotels Trade Production Savings for Product Integrations in George Clooney's Latest Movie”. Advertising Age. 2009年12月14日閲覧。