In May of 2009, DreamWorks Animation Studios announced it would be developing a "Super Secret Ghost Project". Later in mid-June of the same year, the project was given the name of Boo U. Tony Leondis (who came up with the original concept in the early 2000's) was set as director and Jon Vitti was to pen the screenplay for the film, with a release date set for the end of 2012. The plot was originally about a ghost who sucks at scaring people, so he goes back to school.
However, in September of 2012, the film was pushed back to be released on November 6th, 2015, this time as an original project by the director, Leondis, titled B.O.O: Bureau of Otherworldly Operations and written by Tom Wheeler. It was later rescheduled down to June 5th in 2013. The plot was about B.O.O: Bureau of Otherworldly Operations, a top-secret government agency, which employs good ghosts to protect humans from evil hauntings. When two new agents named Jackson Moss and Watts arrive and discover B.O.O's most wanted haunting ghost, Addison Drake wants to destroy B.O.O. They set on an adventure to stop him.
However, on November 17th, 2014, the film was ultimately delayed again by DreamWorks and no other planned release date. Though unexplained, there are two sources as to why the film was delayed again. One, Jeffrey Katzenberg, CEO of DreamWorks wasn't pleased with the film's lack of progress (similar to his controversies involving Toy Story) and the second stating the push-back was so that DreamWorks didn't have to make competition with Pixar's Inside Out which was being released around the same time in the summer.
DreamWorks also suffered a $155 million dollar write-off, primarily related to released films such as B.O.O and Monkeys of Mumbai. According to the studio's chief financial officer, Fazal Merchant, the film's concept has gone back to development and "it may come out later on, but if it does it'll be a completely different form."
The film's future is uncertain.