Before the film's release, its title was changed from "Rapunzel" to "Tangled", reportedly to market the film gender-neutrally. "Tangled" spent six years in production at a cost that has been estimated at $260 million, which, if accurate, would make it the most expensive animated film ever made and one of the most expensive films of all time. The film employed a unique artistic style by blending together features of computer-generated imagery (CGI) and traditional animation while using non-photorealistic rendering to create the impression of a painting. Composer Alan Menken, who had worked on prior Disney animated features, returned to score "Tangled".