The film was originally set to be released on June 5, 2015, but on November 17, 2014, Dreamworks animation pulled it from the release schedule.
The film was originally set to be released on June 5, 2015, but on November 17, 2014, Dreamworks animation pulled it from the release schedule so it doesn't have to open two weeks before Disney/Pixar's Inside Out (2015), which went on to make over $850 million worldwide, more than every Dreamworks Animation film except Shrek 2 (2004).
This marks the fourth collaboration between Melissa McCarthy and Bill Murray. They started together in Charlie's Angels, St. Vincent, the Ghostbusters reboot, and now this film.
Ironically, Melissa McCarthy was a lead character of the Ghostbusters reboot. This film is about ghosts and the paranormal, and also marks the fourth film with former Ghostbuster, Bill Murray, who was also a lead in the original Ghostbusters film.