explained in 2010 the script's evolution: "When I first came onto the project, it wasn't supposed to be the final chapter — there were originally going to be five Shrek movies. Then, about a year into the development, Jeffrey Katzenberg decided that the story that we'd come up with was the right way for Shrek's journey to end." In February 2014, in an interview with Fox Business Network, Katzenberg hinted that a fifth film could still be made. "We like to let them have a little bit of time to rest," he said of the characters. "But I think you can be confident that we'll have another chapter in the Shrek series. We're not finished, and more importantly, neither is he." On June 15, 2016, after NBCUniversal purchased DreamWorks Animation for $3.8 billion, NBCUniversal CEO Steve Burke discussed plans to continue the franchise, as well as other DreamWorks films. In July 2016, The Hollywood Reporter cited sources saying that the fifth film was planned for a 2019 release. In September 2016, Eddie Murphy confirmed that the film was expected to be released in 2019 or 2020, and that the script had been completed. The story for the film was written by Michael McCullers, based on his own idea. When asked about the script in March 2017, McCullers said it featured "a pretty big reinvention" for the film series. On November 6, 2018, it was reported by Variety that Chris Meledandri had been tasked to be the executive producer of both Shrek 5 and Puss in Boots 2, with the cast of the previous films potentially returning. Short films Shrek in the Swamp Karaoke Dance Party (2001) Shrek in the Swamp Karaoke Dance Party is a three-minute musical short film included on home media releases of Shrek. It takes place during the last scene of Shrek (before Shrek and Fiona leave on their honeymoon), with the film's characters performing a medley of modern pop songs. Shrek 4-D (2003) Shrek 4-D, also known as Shrek 3-D, Shrek 4D Adventure, Shrek's Never Before Seen Adventure, and The Ghost of Lord Farquaad, is a 4-D film/ride at various theme parks around the world. It premiered in 2003 at Universal Studios Florida, and was released on DVD. The short takes place right after the first Shrek film. Lord Farquaad returns from the dead to kidnap Princess Fiona and it is up to Shrek and Donkey