Or phone somebody at Wembley...?
It's a bit silly really, how can you copyright live football when you're actually there?
I think things like that have a blanket ban on what they deem 'professional' camera equipment, and by this they usually mean anything with a removable lens... So regardless of the fact that the majority of dslrs are not professional cameras, Wembley would probably consider one to be...
So just take photo's of yourself and your mates they aren't copywrite. Mind you God knows what you will get in the background accidentally
Surely the copywrite ought only to stop you selling your pictures on or has the world truly gone mad?
Let's have a Wembley Carling Cup Final photograph competition after the game, we can all post our pictures and get up the nose of officialdom.