Eddie Murphy Rule: was the commodities trading in Trading Places realistic?

NPR's Planet Money Podcast:

We know something crazy happens on the trading floor. We know that Eddie Murphy and Dan Aykroyd get rich and the Duke brothers lose everything. But how does it all happen? And could it happen in the real world?

Also on the show: The "Eddie Murphy Rule" that wound up in the the big financial overhaul law Congress passed in 2010.

via GeekPress.