I think it was a combination of right place/right time, knowing everything about film-making (and you're right, what makes a good adaptation) and was just a naturally cool, interesting guy, so that everyone who met him just liked him.

It didn't last forever. The last time I saw him was one of those wild random coincidences. I was visiting Cannes during the festival (as a tourist) and ran into him on the Croisette. We went for coffee and he told me that he had become a television producer.