Yes there is still time, but I am afraid only to buy the DVD. Available for as little as 4 GBP I am referring to the 1983 classic movie Trading Places.
This movie is an educational guide as to how a Futures Market would work. You can offer to supply goods e.g. Pork Bellies at a future time at a specific price. Say you offer Bellies at the same price as today. Somebody who wants Pork Bellies in the future might think the price will rise so enters into a contract with you.
In the future then if the price decreased (i.e. did not go up as your buyer expected) then parties are locked to the contract, you win. Alternatively if the street price went up and I had to buy the Pork Bellies later to give to you, then you gain.
Of course the movie does not cover one of the fundamental changes from a gentlemans gentleman industry to one full of Chavs. From an industry when your risked your own money, to one where you risked someone else's.
Aside from the financials I think the movie contains so many memorable scenes and quotes. Here is just one:
More than this, watch this excerpt and repeat after me: It was the Greeks, it was the Greeks :-)
It was the Dukes (Repeat after me: It was the Greeks)
I can see