Philip K. Dick, Do androids dream of electric sheep?

I've just finished listening to "Random House Audio presents 'Blade Runner', based on the novel 'Do androids dream of electric sheep?' by Philip K. Dick, read for you by Scott Brick" on YouTube (https://www.youtube.com/watch?v=lpNbafxtz54).

Previously, I was only familiar with the film, which clearly doesn't have much to do with the book, not including the police procedural elements, the parallel police station (!!), or the references to pre-war culture (the Magic Flute and (?)Munch's Scream), nor J. R. Isidore, Buster Friendly, Mercerism, tower block roof top paddocks, or an electric toad. The book was a blast, really overbearingly oppressive, but a blast, and the reader was just right.

But claiming the film was based on the book? Give me a break.

>1 Cynfelyn:
The majority of the films supposedly based in Philip K. Dick's books/short stories only use some of the ideas from the tales. Apparently "A Scanner Darkly" is the screen adaption that comes closest to telling the same story as Dick's original story.

Yes, the animated film A Scanner Darkly is quite faithful to the novel. I thought the streaming series for The Man in the High Castle was an admirable variation on the the themes and content of the book.

>3 paradoxosalpha:
I enjoyed the first couple of seasons but thought it became a bit too stereotypical resistance-movie like in later seasons. The main Nazi character was brilliantly played. That actor was stand out for me. ( Rufus Sewell)

>4 pgmcc:
That's fair. I did prefer the writing in the first two seasons as well, but I thought the performances were strong throughout.

Edited to add: I suspect season four's writing suffered from hurry-up-and-finish when they found out that a fifth season wasn't going to happen.

>5 paradoxosalpha:
The acting was very good.

I enjoyed the worldbuilding in High Castle as well as Rufus Sewell, and the whole subplot regarding Mr. Tagomi, the trans-dimensional Japanese trade attaché. But I had a problem when they managed to mis-identify some stirring propaganda music as Wagner when it wasn't. I only found this out because age means I tend to put subtitles on to make sure I pick up dialogue, and was boggled when they suggested some dramatic Bruckner was Wagner, because, Nazis.

I would say that Blade Runner was a great adaptation of Androids in the same way that Apocalypse Now was a great adaptation of Heart of Darkness. Both of them succeeded because the makers realized that what made the books great would make the film terrible, so instead of mechanically transcribing the book into a screenplay and trying to preserve incidents and dialog and somehow make them work on the screen, they took the trouble to understand the source material and create a film that would do the same work and require the same work of the reader.