High Quality Content by WIKIPEDIA articles! Blue is a Bollywood film directed by Anthony D'Souza, released on 16 October 2009, starring Akshay Kumar, Sanjay Dutt, Lara Dutta and Zayed Khan. It is an action film that is centered around an underwater treasure. The film was written by American writers Joshua Lurie and Bryan M. Sullivan. Kylie Minogue makes a musical guest appearance in the film. A. R. Rahman composed the music with Resul Pookutty doing the sound design. Mukhtar Sahota, a UK-based music producer was bought in by A. R. Rahman for the lyrics and vocals for the background score. The film is the most expensive Bollywood film. Katrina Kaif has a cameo appearance and her look was kept a secret before the release of the film to add a sense of suspense to the film.