But Along Came a Spider is based on a book from 1993, and the sort of things you’re mentioning here, e.g. the trophy room, are standards of serial killers (yeah I’ve been listening to way too much All Killa No Filla). I mean it’s hard to really draw the lines where a book might have influenced another book or a film of that book influenced that book and so once someone makes the film it becomes fairly muddied to say the film created the tropes.
Anyway, The Fisher King is great you nutter. Did you only watch it once 25 years ago? Maybe you should give it a contemporary rewatch.