Despite the graphic gore effects of slasher films being the driving force behind their box office success , the MPAA gave in to the critical reception and reaction of pressure groups who were protesting the films in the wake of violent acts , such as the assassination of John Lennon , and the growing debate about violence in the media . '' The Burning '' was heavily trimmed to receive its R-rating . The film remained cut in the United States for nearly 30 years , until its release on DVD in 2007 restored the scenes of gore
assassination of John Lennon
Murder of John Lennon
The Burning (film)