What's the difference?

What's the difference between Calvinism and Lutheranism? They both flow from the Reformation, but the starting points are different. Calvinism begins with the glory and sovereignty of God, while Lutheranism begins with the cross of Jesus Christ and justification. Here is a link to a Reformation week show on Issues, Etc. comparing the "TULIP" of Calvinism to confessional Lutheranism: Confessional Lutheranism and Calvinism with Dr. Ken Schurb