The love scenes that worked, regardless of the director, were the ones where the actors weren't fearful. When somebody was fearful, you could see it right away. It takes you out of the story, and that's to be avoided at all costs.
It is curious that, with my somewhat antinomian tendencies, I should have gone to Trinity Hall - which was, and is, before all a Law College - and should thus have been thrown into close touch with the legal element in life.