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"): It fires a stream of highly focused and radially polarized protons that electrostatically traps the negatively charged energy of a ghost, allowing it to be held in the stream.
Relevant evidence: No