May I just make the timely recommendation of the recent movie Luther? Of course I can -- it's my blog!
Though I've read a couple of lives of Luther, I'm not historian enough to give a detailed analysis of its accuracy. I do know that I recognize many direct quotations, and that I think it does just a dandy job of bringing out the historical context and background, and featuring Luther's preaching of the Gospel. Very dramatic, very moving. We grownups experienced chills and tears, it held the eleven-year-old very interested, and even the seven-year-old was involved through most of it.
The PG-13 rating is for some violence and intensity (a suicide; the Peasants' Revolt and its aftermath).
And, unless you want to go for yet another footnote in the ongoing Actors Are Idiots saga, don't watch the interview with leading actor Joseph Fiennes. He plays Luther very well. He seems to understand the movie not at all. To him it's about minorities, repression, blah blah blah.
What matters is that the people who made the movie evidently understood what it was about, and that Fiennes did what they told him to do, and did it well. When he ran out of script, he should have run out of words. Or talked about something he knew -- I don't know... canapes, double-decker buses, fog?
On reflection, not a bad rule for most actors.
So that aside, I enthusiastically commend this movie to you at this Reformation season.