Didn't know there was such a book; I thought the title "Blade Runner" came from one of Dick's colleagues or buddies, maybe W Burroughs?
Nope. It even got a credit in the credits. I didn't read the original book - I read a book review of it in Analog, and the story concept stuck with me. Just looked it up, it was written in 74 by Alan E. Norse.
Bladerunner was written by Alan E. Nourse and was an excellent science fiction novel. I was actually disappointed that the movie did not use Nourse's novel.
I agree with your Planet of the Apes selection. I saw it when I was a kid and it stuck with me more than any Disney movie.
Too bad Elvis didn't make a sci-fi flick. I mean it! That white jumpsuit would have been a perfect costume.