You think "Pulp Fiction" was influential.. Maybe to independent filmmakers, just to encourage them that anything is possible, but Tarantino's works are nothing but citings of his influences.
"Touch of Evil", while I am not a fan of his movies, was a prime example of Orson Welle's brand of cinematography. The all important cinematic visual narrative, which is still alive and well today, most recently in "Dawn of the Dead" (2004).
I think each genre has a handful of quintessential influential films. The Marx Brothers were gods of slapstick comedy, which evolved into the modern day parody. Fritz Lang's "Metropolis" was one of the earliest films to exploit the science of androids, playing a MAJOR role in Sci Fi's birth, and "The Cabinet of Dr. Caligari" was the slingshot for the Horror and Suspense movies. All of which are just as effective today.
Lord of the Rings is too new to have any kind of major impact. It might have impacted the 3 years it took to be realeased as a trilogy.
And Bride of Frankenstein? There are so many more classic that have been more influential.
Shawshank is newer. It's not that famous, and you don't see much if it's influences around today. Bad choice I'm afraid... and like Cory said, Tarantino said himself that he steals everyone elses ideas.
Well, Slipknot said slasher movies pertaining to the 80's, "Halloween" debuted in 1978, same year as "Dawn of the Dead". "Psycho" unjustly gets the quintessential slasher movie nod, but rather unfairly, IMO.
I'm pretty positive that Tarantino's work will become very influential in the near future, Pulp Fiction in particular.
You could say that any really great movie is influential, because if they are really great, people are bound to copy them. Take The Matrix, that's a fairly new movie, and it was influenced by all manor of things, but it's already changed the way we look at sci-fi & action movies completely.