Ra.One is an upcoming 2011 Hindi science fiction superhero film written and directed by Anubhav Sinha, and starring Shahrukh Khan, Kareena Kapoor and Arjun Rampal in the lead roles. It also stars Shahana Goswami, Dalip Tahil and Chinese-American actor Tom Wu in supporting roles, along with Rajinikanth, Sanjay Dutt and Priyanka Chopra making guest appearances. It is now set to have a worldwide opening during the Diwali weekend of 26 October 2011.

Ra.One is currently India's most expensive film to date and will be released in both 2D and 3D formats across over 3,500 screens worldwide in 2D and around 550 screens in 3D, along with its dubbed versions in Tamil, Telugu and German.

Ra.One is the modern, new age technology version of our mythological "Raavan", who was a mixture of ten different evil characters. Shahrukh plays the role of G.One or better say "Jeevan", a superhero who saves the mankind from Ra.One's torment.

The film is set to release on October 26, 2011.