Erin Gilbert. Renowned quantum physicist and number 436 on Amazon's bestselling paranormal author list! #Ghostbusters Subscribe for more Ghostbusters exclusives: http://bit.ly/SonyPicsSubscribeYT Like us on Facebook: http://www.facebook.com/Ghostbusters Follow us on Twitter: http://twitter.com/Ghostbusters Follow us on Instagram: https://www.instagram.com/Ghostbusters/ Cast: Melissa McCarthy Kristen Wiig Kate McKinnon Leslie Jones Charles Dance Michael Kenneth Williams and Chris Hemsworth Directed by: Paul Feig