Ra.One is a 2011 Indian science fiction superhero film directed by Anubhav Sinha, and starring Shah Rukh Khan, Arjun Rampal, Kareena Kapoor, Armaan Verma, Shahana Goswami and Tom Wu in pivotal roles. The script, written by Sinha and Kanika Dhillon, originated as an idea that Sinha got when he saw a television commercial, and which he subsequently expanded.