Ra.One

Ra.One is a 2011 Indian Hindi-language superhero film directed by Anubhav Sinha and produced by Gauri Khan under Red Chillies Entertainment. The film stars Shah Rukh Khan in a dual role and Arjun Rampal as the titular antagonist, with Kareena Kapoor, Armaan Verma, Shahana Goswami, Tom Wu, Dalip Tahil and Satish Shah in supporting roles. The film's title is inspired by Hindu Saga character Ravana. In the film, a video game antagonist escapes into the real world to track down the player who almost defeated him. The son of the game's deceased creator brings the game's protagonist into the real world to safeguard himself and his mother from the antagonist.

Principal photography began in March 2010 and took place in India and the United Kingdom and was overseen by an international crew. The post-production involved 3-D conversion and the application of visual effects, the latter being recognised as a technological breakthrough among Indian films. With a budget of , inclusive of publicity costs, Ra.One was the most expensive Indian film at the time of release, surpassing the budget of Enthiran (2010). The producers spent , including a marketing budget, which involved a nine-month publicity campaign, brand tie-ups, merchandise, video games and viral marketing. The film faced controversies involving plagiarism, content leaks and copyright challenges.