I have never written much, other than jeuvenile poetry, but I think adaptation and screen writing is not as easy as some are implying..unless of course we are in company of gifted script writers..then I apologise.
PECS you have obviously not read the latest play wot I wrote.
Perhaps adaptation of novels and screen writing may not be as easy as some may assume, but I think we are, in the main, capable of dissecting, criticising and judging whether or not it is enjoyable, good or even worth watching.
And deciding that in fact we think it is rubbish.
Views may differ, of course.