Question: The proton pack was first depicted in the film "Ghostbusters", an American supernatural comedy film directed and produced by Ivan Reitman and written by Dan Aykroyd and Harold Ramis and released in what year?
Sentence (from "Proton pack"): First depicted in the film "Ghostbusters", it has a hand-held wand ("Neutrona Wand" or particle thrower) connected to a backpack-sized particle accelerator.
Relevant evidence: Yes