American football is a bit like quantum physics to your average Englishman. It may seem a little daunting at first, but when you strip it down the principles are really quite basic and easy to follow (Not quantum physics, that's fucking solid).
Next weekend is the Superbowl, where the winners of each league will come head to head in New York for a massive showdown. A bit like the champions league final, but with with less hair gel. So here's a quick funny video to get you up to speed with the stuff you need to know to enjoy it.