The first film, "", was written by Ken Keeler and Cohen, and includes return appearances by the Nibblonians, Seymour, Barbados Slim, Robot Santa, the "God" space entity, Al Gore, and Zapp Brannigan. It was animated in widescreen and was released on standard DVD on November 27, 2007, with a possible Blu-ray Disc release to follow. A release on HD DVD was rumored but later officially denied. "Futurama: Bender's Big Score" was the first DVD release for which 20th Century Fox implemented measures intended to reduce the total carbon footprint of the production, manufacturing, and distribution processes. Where it was not possible to completely eliminate carbon, output carbon offsets were used, thus making the complete process carbon neutral.