Then there's always Mr. Scofield, bringing an almost unbearable, yet entirely believable, lightness of spirit to his loathsome character. It's a bold stroke by a great actor, making zealotry and evil seem positively beneficent.
I recommend Hytner's movie highly, but a part of me resists a work that makes the audience feel as noble in our moral certainty as the characters it invites us to deplore. Some part of its power seems borrowed from the thing it hates.
Neither the establishing dramatic linchpin nor the final conversion of conscience is terribly convincing, leaving this pared-down rendition of the original work diminished in power and meaning as well.