Watch FilmoFlix. Billion Dollar Day is a documentary about currency trading created by the British Broadcasting Corporation on June, 4th 1985. The documentary focuses on three traders, each located in New York, London and Hong Kong. The traders are followed throughout a typical day in order to demonstrate the challenges and dedication of each trader. More than a Billion is exchanged during the course of 24 hours while trading GBP, USD and German Marks. The documentary is considered a landmark in International Business Schools and currency trading circles.