[William Cloud Hicklin]

Also he was quite happy to contribute to the BBC radio adaptation of LotR, to the extent of being sent the script for approval & recording a cassette of pronunciations. This alone says to me that he is not totally opposed to dramatisation of his father's works.

Interesting you should bring that up: remember, CT's press release said he thought his father's writing unsuitable for visual dramatic adaptation. Why this should be an important distinction I haven't been told: it may relate to the strictures JRRT gives in On Fairy-Stories; but it might well relate to the fact that a radio-play is still a medium based on words.