There are quite a few films about Martin Luther, though this one is unusual because it was produced by the Lutheran Church--not Hollywood or some other secular group. Not surprisingly, when I grew up a Lutheran, this is the version they occasionally showed at church functions. Also, not surprisingly, it's filled with church doctrine and other teachings that you won't get in a Hollywoodized version of the life of this church leader.
At times the film is very much like a documentary in style--with narration and explanation of Luther's inner torments when he began having doubts about his Catholic faith. You see a slightly less human side to Niall MacGinnis' characterization of Luther--more the authoritarian and scholarly in nature and fewer insights into his personal life. Considering the film's goal is to elevate this made to greatness as the leader of the faith, it does a very good job in inspiring the masses and putting across many of the differences between Catholicism and Protestantism. Very well made and well worth seeing.