OK Jaanu is a 2017 romantic drama film based on Mani Ratnam's Tamil film O Kadhal Kanmani in terms of screenplay and story. Aditya Roy Kapur and Shraddha Kapoor act in the lead roles, while Dulquer Salmaan and Nithya Menen star in the original film, which depicts a young couple in a live-in relationship in Mumbai. The original film received great reviews from critics, who praised the lead actors' performances as well as the technical components of the picture. The film went on to be a financial triumph at the box office, performing exceptionally well at Indian and international multiplexes. Meanwhile, Ok Jaanu, a scene-for-scene remake that capitalises on memorable moments from the original film, has received mixed reviews.