Phenomena (Dario Argento, 1985) Italy
If you seek this one out, make sure to search for it under the name Phenomena, as Creepers is the heavily-edited U.S. release version.
This poster is surprising to me, as I’ve actually never seen this version. I’m used to the “gore-enhanced” version:

(Source: cinematicwasteland)
(Source: vintagegal, via sailorpinkie)

