Nibunan (transl. Expert) is a 2017 Indian action thriller film co-written, co-produced and directed by Arun Vaidyanathan. The film features an ensemble cast of Arjun, Prasanna, Varalaxmi Sarathkumar, Sruthi Hariharan, and Vaibhav. It was Arjun's 150th film. Featuring music composed by Navin and cinematography by Arvind Krishna, the film began production in late 2015. The film was simultaneously filmed and released in Kannada as Vismaya (transl. Amazing).The two versions of the film had a worldwide theatrical release on 28 July 2017 and received mixed reviews from critics. The film was also dubbed in Telugu under the title Kurukshetram (transl. Battlefield) and was released in September 2018.