In the movie Trading Places with Dan Aykroyd and Eddie Murphy, the plot centers around the trading of futures... mostly notably Frozen Concentrated Orange Juice (FCOJ). I always thought that was a joke, and wasn't a real commodity that could be traded. As it turns out, FCOJ is actually traded on the market. Who'd a thunk it?
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.