<P> The film introduces a vehicle that has been compared with the Batplane and the Batcopter, dubbed "the Bat". In designing the Bat, Nathan Crowley approached it as if it were an actual military project, emphasising the need for it to "fit into the same family" as the Tumbler and the Batpod . The final version of the Bat takes its design cues from the Harrier Jump Jet, Bell Boeing V - 22 Osprey and the Boeing AH - 64 Apache . Chris Corbould described the Bat's size and shape as presenting a major challenge for filming given Christopher Nolan's emphasis on practical effects over computer - generated imagery . In order to make the Bat "fly", it was variously supported by wires, suspended from cranes and helicopters, and mounted on a purpose - built vehicle with hydraulic controls to simulate movement . </P> <P> When designing the Batcave set, Crowley and fellow production designer Kevin Kavanaugh hit upon the idea of flooding the Batcave and having Batman's equipment, the Batsuit and a supercomputer rise from the water . Another set was designed at Cardington as an "underground prison", a rough - hewn labyrinth of stone cells in a vast abyss with a 120 foot (37 m) vertical shaft leading to the surface . Exteriors above the prison were filmed in Jodhpur, India, chosen because the "forbidding landscape added to the desolation". </P> <P> In an interview in October 2010, composer Hans Zimmer confirmed that he would be returning to score The Dark Knight Rises . James Newton Howard was offered to return and write the score with Zimmer as he did for Batman Begins and The Dark Knight, but he chose not to because he noted that the chemistry established between Zimmer and Nolan during the making of Inception would make him seem like a "third wheel". Zimmer included several cues from the earlier scores, but explains that he wanted to go in a "completely different direction" for Bane's theme . While the theme accompanying Selina Kyle is deliberately ambiguous, the musical thread spanning throughout the trilogy was composed exclusively for Bruce Wayne . </P> <P> The film features a prevalent Moroccan chant of the phrase deshi basara (proper transliteration: Tījī basara'ah) (Arabic: تيجي بسرعة), which translates to "rise up" (literally: "come quickly"). In November 2011, Zimmer crowdsourced online audio recordings of the chant to be used in the film's score . When asked about the chant for clarification, Zimmer said, "The chant became a very complicated thing because I wanted hundreds of thousands of voices, and it's not so easy to get hundreds of thousands of voices . So, we tweeted and we posted on the internet, for people who wanted to be part of it . It seemed like an interesting thing . We've created this world, over these last two movies, and somehow I think the audience and the fans have been part of this world . We do keep them in mind ." </P>

Who plays robin on the dark knight rises