Amazing Grace sounds well worth seeing
Please do not let the early part of the film, where this argument is taking place, make you discount the rest of the film. It is historically accurate; Wilberforce was against the British fighting the American colonists.
This was well-acted, and I give it higher marks than does Mr. Steyn. The recreation of the London docks was realistic and a bit awe-inspiring. The costumes were meticulously done, and even captured the change in women's clothing and men's hairstyles between the late 18th and early 19th centuries. I have seen very few films manage this with accuracy.
I found the film inspiring. We are going to England next year, and we will say a prayer for Wilberforce and Pitt, who are buried next to each other in Westminster Abbey.