In addition to the legal issues, the film was also faced with delays when several cast members went on hiatus due to unrelated commitments and circumstances. Rachel Weisz left halfway through the shoot to film her entire role in "The Bourne Legacy", Michelle Williams was required to promote the release of "My Week with Marilyn" and Franco's father died during production. Roth compared the task of managing overlapping schedules to "being an air-traffic controller." Mila Kunis's makeup and prosthetics were supervised by Greg Nicotero and demanded four hours to apply and another hour to remove, with Kunis taking nearly two months to fully recover from the subsequent removal of the makeup from her skin. Raimi had to edit the frightening nature of several scenes to secure Disney's desired PG rating from the MPAA. Sony Pictures Imageworks was contracted to create the film's visual effects. Composer Danny Elfman noted that the film's score was accessibly quick to produce, with a majority of the music being written in six weeks. Regarding the tonal quality of the score, Elfman stated, "We're going to take an approach that's old school but not self-consciously old-fashioned. Let the melodrama be melodrama, let everything be what it is. I also think there's the advantage that I'm able to write narratively, and when I'm able to write narratively I can also move quicker because that's my natural instincts, I can tell a story in the music." American singer-songwriter Mariah Carey recorded a promotional Pop single called "Almost Home" written by Carey, Simone Porter, Justin Gray, Lindsey Ray, Tor Erik Hermansen, and Mikkel Eriksen (a.k.a. Stargate) for the soundtrack of the film. The single was released on February 19, 2013 by Island Records. The original soundtrack to "Oz the Great and Powerful" was released digitally and physically by Walt Disney Records on March 5, 2013. The physical CD release was in association with Intrada Records. In May 2011 before filming began, Walt Disney Studios Motion Pictures gave "Oz the Great and Powerful" a March 8, 2013 North American theatrical release date. The film had its world premiere at the El Capitan Theatre in Hollywood on February 14, 2013. Disney opened the film in wide release in 3,912 theaters. To promote the film, Disney partnered with the IMAX Corporation and HSN to coordinate a hot air balloon campaign across the United States beginning in California at the Walt Disney Studios lot in Burbank, stopping at four locations; the El Capitan Theatre during the world premiere, the Disneyland Resort in Anaheim, the Daytona International Speedway in Florida and Central Park in New York City.