Johnny Mnemonic was dead tree published in 1981. (I have the issue of OMNI)

Blade Runner, the movie, was released in 1982.

And PKD's DADoES was published in 1968.

Honestly, IMHO, Blade Runner in movie form shares more DNA with Alien than proto-cyberpunk. They're both character studies rather than world-building exercises, albeit with massive credit to Ridley Scott and the design team that their "background" world is more lifelike than many world-centric films.

But Blade Runner fundamentally lacks the multi-level cutthroat competitive aspect of cyberpunk. Oddly enough, a quirk that frequently recurs in British scifi, in contrast to the more free market American themes.