Aadi and Tara fall in love but both hate the idea of marriage and plan to separate when their lives take them to different countries. However, as they grow closer, their emotions are not easily managed.
Unfortunately the movie O Kadhal Kanmani is not yet available on HBO Max.
| Writing | Mani Ratnam | Story |
| Crew | Nikhil Murugan | Public Relations |
| Art | Sharmishta Roy | Production Design |
| Directing | Mani Ratnam | Director |
| Production | Mani Ratnam | Producer |
| Editing | Sreekar Prasad | Editor |
| Camera | P. C. Sreeram | Director of Photography |
| Sound | A.R. Rahman | Original Music Composer |
| Crew | Anbumani | Stunts Coordinator |
| Sound | Sudipto Mukhopadhyay | Sound Mixer |
| Sound | Anand Krishnamoorthi | Sound Designer |
| Camera | C H Balu | Still Photographer |
| Editing | Saravanan Madheswaran | Assistant Editor |
| Crew | Brinda | Choreographer |
| Writing | Mani Ratnam | Screenplay |
| Sound | Jonita Gandhi | Playback Singer |
| Costume & Make-Up | Eka Lakhani | Costume Designer |
| Writing | Sirivennela Seetharama Sastry | Lyricist |
| Art | Tanveer Mir | Assistant Director of Photography |
| Directing | Dhana | Assistant Director |
| Sound | A. R. Ameen | Playback Singer |
| Production | Mala Manyan | Executive Producer |
| Crew | Arivumani | Stunt Coordinator |
