I've been waiting for someone to upload this for years! It's from a fantastic documentary series filmed in the late 1980s by the BBC called Reaching For The Skies, which across 12 one hour episodes tells the full story of aviation from the Wright Flier to the Giants of the Air. This particular episode is my favourite, and tells the story of the Rivals Over The Atlantic - covering the early days of the piston engined giants to the invention of the jet engine and dawn of the jet age, to Concorde of course! Have a watch, it's brilliant!