O.M Trailer Out: Dhanush Goes Undercover as Mammootty’s Shadowy Siya Steals the Show
The trailer for O.M — Chapter 1: Udhiram – The Blood Wood is finally out, and it lives up to the wait. Released late on Friday night, hours after its scheduled 7 pm launch, the nearly three-minute trailer plunges viewers into the red sandalwood smuggling world of the Seshachalam forests, with Dhanush as an undercover officer, Sai Pallavi as the IPS officer running the operation, and Mammootty as the shadowy figure controlling the trade from behind the scenes.
The trailer opens with the words “Some of these things actually happened” over the sound of Suprabhatam, the morning prayer familiar in South Indian homes, before introducing Operation Mole — a secret joint mission by the Tamil Nadu and Andhra Pradesh police to dismantle the smuggling network. Dhanush plays D-402, an officer of Tamil Nadu’s Organised Crime Intelligence Unit who goes in as a woodcutter, while Sai Pallavi’s IPS officer Nithya Reddy leads the operation. Mammootty, in his first on-screen collaboration with Dhanush, plays Siya — also known as Burma Karthikeyan — a politically powerful figure who runs the trade from the shadows. Sreeleela plays Dhanush’s wife, with Naseeruddin Shah and Indrans in support.
Written and directed by Rajkumar Periasamy, who directed Sai Pallavi in last year’s blockbuster Amaran, the film is produced by Dhanush, Shraddha Agrawal and Azmat Jagmag under Wunderbar Films and RTake Studios, with music by Sai Abhyankkar. The film was originally set for October 16 before being pushed to November 20 to avoid a clash with Rajinikanth’s Jailer 2 and Suriya’s Scene, and it will release worldwide in Tamil with dubbed versions in Telugu, Hindi, Malayalam and Kannada. PEN Marudhar will distribute it in North India; Netflix reportedly holds the streaming rights, with no premiere date announced.
Here is the Filmverse take: the casting is the trailer. A Dhanush–Mammootty face-off is the kind of pairing Tamil cinema has waited years to see, and the trailer wisely saves Mammootty’s reveal for maximum impact. The risk is the shadow of Pushpa — red sandalwood smuggling is now familiar territory, and O.M must prove its undercover-operation angle is a different film, not a different poster. With Sai Pallavi riding the Ramayana wave as Sita, and Periasamy coming off Amaran, the film arrives on November 20 with genuine momentum. Our trailer-announcement report: https://filmverse.in/om-trailer-release-today-dhanush-mammootty-sai-pallavi-november-13/
Watch the official trailer below:
O.M — Chapter 1: Udhiram – The Blood Wood releases in cinemas on November 20, 2026.
Source: Pinkvilla, Bollywood Hungama, Glamsham, Only Kollywood and OTT Newspaper.
Team Filmverse
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