OM Chapter 1: Udhiram (2026): Trailer, Cast, Story & Release Date
The trailer of OM – Chapter 1: Udhiram – The Blood Wood releases today, 13 November 2026. The makers, Wunderbar Films, officially announced the trailer date a day earlier, a week before the film’s worldwide theatrical release on 20 November 2026. Directed by Rajkumar Periasamy, the Tamil action thriller brings together Dhanush and Mammootty for the first time, with Sai Pallavi and Sreeleela in key roles.
Movie Details at a Glance
| Detail | Information |
|---|---|
| Movie | OM – Chapter 1: Udhiram – The Blood Wood |
| Language | Tamil |
| Director | Rajkumar Periasamy |
| Cast | Dhanush, Mammootty, Sai Pallavi, Sreeleela, Naseeruddin Shah, Indrans |
| Trailer release | 13 November 2026 |
| Theatrical release | 20 November 2026 |
| Genre | Action thriller |
| Production | Wunderbar Films and RTake Studios |
Details in this post come from the trailer announcement and film coverage. OTT details are not yet confirmed.
The Story of OM Chapter 1: Udhiram
OM is an action thriller built around a major operation against the illegal red sandalwood trade. Sai Pallavi plays Nithya Reddy, a determined police officer who takes charge of the operation — a journey shaped by her father’s legacy. The makers have already unveiled a special glimpse introducing her character, running for about 1 minute and 42 seconds.
The trailer announcement came with a new poster featuring Dhanush in a blood-stained outfit, holding a camera, against a red and dark blue backdrop, with Mammootty and Sai Pallavi partially visible behind him. Industry trackers had earlier reported 15 November as the likely trailer date, but the makers’ own announcement confirms 13 November.
The film was first scheduled for 16 October 2026. Dhanush moved it to avoid a clash with Rajinikanth’s Jailer 2 and then out of the Diwali window so it would not compete with Suriya’s Scene — Suriya thanked him for the gesture at Scene’s audio and trailer launch in Chennai on 31 October.
Cast and Director
- Dhanush in the lead role
- Mammootty in a lead role — his first film with Dhanush
- Sai Pallavi as Nithya Reddy, a police officer
- Sreeleela in a key role
- Naseeruddin Shah, Indrans and Chaitu Jonnalagadda in prominent roles
OM – Chapter 1: Udhiram – The Blood Wood is written and directed by Rajkumar Periasamy, his third directorial venture after Rangoon and the National Award-winning Amaran. The film is produced by Wunderbar Films and RTake Studios.
Where to Watch OM Chapter 1: Udhiram
OM – Chapter 1: Udhiram – The Blood Wood releases in theatres worldwide on 20 November 2026. Its OTT platform and streaming date are not yet confirmed.
FAQs
When is the OM Chapter 1 trailer releasing?
The trailer releases on 13 November 2026, as officially announced by Wunderbar Films.
When is OM Chapter 1: Udhiram releasing in cinemas?
The film releases in theatres worldwide on 20 November 2026.
Who directed OM Chapter 1: Udhiram?
OM – Chapter 1: Udhiram – The Blood Wood is written and directed by Rajkumar Periasamy.
Who is in the main cast of OM Chapter 1: Udhiram?
The main cast includes Dhanush and Mammootty in the lead roles, with Sai Pallavi as Nithya Reddy, Sreeleela, Naseeruddin Shah and Indrans.
What is the story of OM Chapter 1: Udhiram?
The action thriller is built around a major operation against the illegal red sandalwood trade, led on screen by Sai Pallavi’s police officer, Nithya Reddy.
