"Ghostbusters" director Paul Feig is keeping fans updated with photos of costumes and other paraphernalia used in the movie. In a recent tweet he shared a photo of the proton pack used by the main characters. In the photo, the fictional energy weapon is seen against a tiled wall. It appears to have a digitized numbering system and an orange backpack-style belt.


The device first appeared in 1984's “Ghostbusters,” where it was used to fire protons at ghosts in order to polarize their energy. It consisted of a handheld particle thrower and a particle accelerator. It is not known whether the updated machine will have same functions.

Previously, Feig shared a photo of the updated Ghostbuster uniforms. The outfits were shown to have a slight variation from the original versions. The jumpsuit-style costumes now feature orange stripes on the chest and a Ghostbusters logo on the right sleeve.
The "Ghostbusters" reboot is being filmed in Boston. Feig said he is quite excited about the film. 

Feig has written the screenplay with Kate Dippold. The film will star Melissa McCarthy, Kristen Wiig, Kate McKinnon, Leslie Jones and Chris Hemsworth. The female actors will lead the cast whereas Hemsworth will play a receptionist. 

The film, produced by Amy Pascal and Ivan Reitman, is scheduled to open July 22, 2016.