Directed by: GS Viknesh
Produced by: SR Prakash Babu, SR Prabhu
Starring: Nayanthara, Rithvik, Bharath neelakandan, Aadukalam murugadoss
Cinematography: Thamizh A. Azhagan
Edited by: Selva RK
Music by: Vishal Chandrasekar

O2 is Tamil-language survival thriller film directed by GS Viknesh and produced by Dream Warrior Pictures, starring Nayanthara and Rithvik in the lead roles.

What works

A survival thriller set on bus, plot seems to be fresh. Mother – son emotional angle worked well and master Rithvik done fabulous job . Nayanthara scored as usual. A big applause to the cinematographer for the fabulous work. Music is ok and good in emotional scenes.

What not works

Miserably failed to make a convincing survival thriller. Some flaws in screenplay and some logical errors in many situations. Most of the time misses the emotional connection and narration seems predictable. Poorly written supporting charecters not connecting well to the audience.

Bottomline

Lack of thrill!!!!!!