2.O is a 2018 Indian Tamil-language science fiction action film written and directed by S. Shankar, and co-written by B. Jeyamohan. The film was produced by Subaskaran Allirajah and Raju Mahalingam under the banner Lyca Productions. A spiritual successor to Enthiran (2010), 2.0 features Rajinikanth reprising the roles of Dr. Vaseegaran and Chitti, alongside Akshay Kumar and Amy Jackson. Sudhanshu Pandey, Adil Hussain, Kalabhavan Shajohn, and Riyaz Khan appear in supporting roles. In addition to its original language, the film will be released in 14 other languages with dubbed versions. The soundtrack was composed by A. R. Rahman, with lyrics written by Madhan Karky and Na. Muthukumar.
Produced on an estimated budget of ₹543 crore (US$76 million), 2.O is the most expensive Indian film. Pre-production work for the film began in June 2015. Jackson joined the project the same year in October. After negotiations with numerous actors, including Aamir Khan and Arnold Schwarzenegger, failed to materialize, Kumar was signed on as a primary persona. Principal photography was launched at AVM Studios in December 2015; the first schedule was filmed at EVP World. Scenes were primarily shot in India, particularly in Chennai’s Madras Boat Club and Delhi’s Jawaharlal Nehru Statdium. Some were set in exotic locations by the use of visual effects. Filming was completed by August 2017.