Since today is Reformation Day, I have assembled a special collection of clips to celebrate:

Martin Luther at the Diet of Worms (2003 movie edition):

A Reformation Day Polka:

A Reformation Day Rap:

On a more serious note, you can find a listing of the 95 Theses here and a good description of the Five Solas of the Reformation here. Now go celebrate the rediscovery of the Gospel through the Reformation!