Kadhalil Vizhunthen is a 2008 Indian Tamil-language romantic psychological thriller film written and directed by P. V. Prasath starring Nakul and Sunaina. The film has music by Vijay Antony, cinematography by S.D. Vijay Milton, and editing by V. T. Vijayan. The shooting for the film started in August 2007, and the film was released in September 2008 to positive reviews.