This is a scene from the movie Quick Change, starring Bill Murray. Its one of my favourite of his movies(Up there with Ghostbusters, Groundhog Day and What About Bob).

I really dont understand what this scene is about...:dunnodude:
Is it a joke that only someone from America would understand? Is there some funny truth to the whole jousting thing? Does that guy die???

[spoiler]The guy that falls off his bike looks like me [/spoiler]