Shah Rukh Khan and Kareena Kapoor are all set to star together in Anubhav Sinha’s Ra One, a home production of Shah Rukh khan.

According to a source, “Ra One is a science-fiction film set in the future in which Shah Rukh plays a superhero. So he will be seen wearing a cape, his underwear over his pants, flying over skyscrapers and saving the day. Technically, Ra One will be India’s third superhero film, Krishh and Drona being the first two. Ra One is a big budget film with never-before seen special effects.”

Though SRK and Bebo have sizzled in the item songs of Don and Billu Barber, but the last time they were seen opposite each other was Santosh Sivan’s Asoka. The duo was also seen in Kabhi Khushi Kabhi Gham.

About Kareena’s role in the movie, our source said, “An actor and star of Kareena’s stature and caliber will not be happy playing just a glam doll so she has signed because she has been given a substantial role in the film. She is super fit and lean too and can mould herself according to any role. The stunning star will also get to kick some butt after Tashan. Being signed on for Ra One is a big deal for Kareena because it will be one of the most anticipated releases of 2010. She already has KJo’s Stepmom remake. Moreover, working in Ra One will increase her chances of playing the lead in Farah Khan’s Happy New Year. Priyanka Chopra and Deepika Padukone are the other actors who are eyeing the film.”

Ra One is directed by Anubhav Sinha of Dus, Tum Bin and Cash fame. Filming will begin in US in December, followed by a schedule in Mumbai