Most Evangelicals who celebrate Reformation Day do so on October 31, which is the day that Martin Luther nailed his famous 95 theses to the Castle Church door in Wittenburg in 1517. The debate that ensued led to a full outbreak of reformation and to Luther's trial at the Diet of Worms in 1521. So, I offer the above video as a reminder of this important occasion in the history of the Church. The clip is taken from the excellent 1953 film, Martin Luther, in which Luther was wonderfully portrayed by Niall MacGinnis. I really like the way the film employs Luther's famous hymn, A Mighty Fortress is Our God, in the background.
For those who are interested, here is the complete film: