I recently watched the 1994 BBC film, The Madness of King George. The movie was adapted by Alan Bennett from his own play.
I didn't know much about King George III going into it, and therefore am not sure how historically accurate the production was, but I found the entire thing pretty damn captivating.
Looking at the film objectively, I'm not sure most would agree, I have a feeling it would, more often than not, be considered slow, and while it's true the pacing was a little off with what you would expect from a comparatively modern film, it still worked for me in most respects.
Nigel Hawthorne and Helen Mirren were wonderful casting as the king and queen. The chemistry was, perhaps, the best I've seen in some time.
The action is centered around events from 1788-89 when King George was suffering from abnormal behaviors and mood swings which resulted in something resembling a coup.
The movie is very much sympathetic towards King George III and much less so to the Prince of Wales (Rupert Everett). Once again, I have no idea how accurate or biased this script may be but looking at it from an entertainment standpoint, it all seemed to flow beautifully.
The drama was well established from the beginning. The characters transitioned nicely throughout the course of the story and although emotions ran high, there was no point were I felt overly manipulated as a viewer.
If you're a fan of historical dramas, I would definitely give this a try.