A Stone, A Mirror) abbreviated as OKOK is a 2012 Indian Tamil-language romantic comedy film written and directed by M.

En route, Saravanan recollects his past: he was an easy-going and eccentric youth working in a film theatre with Partha.

One day in traffic, Saravanan sees Meera, a girl training to be an air hostess, and falls for her at first sight.

Meera threatens Saravanan by showing her father's photo, who is a Deputy Commissioner of Police (DCP), Mahendra Kumar.

Meera tells Saravanan that she has some qualifications required by her lover, like shaving regularly, dressing well, breaking his friendship with Partha, coming on time, etc.

Special appearances Udhayanidhi Stalin had bought the distribution rights of Rajesh's previous film Boss Engira Bhaskaran.

[8] As the film emerged successful, Udhayanidhi decided to continue the collaboration, going on to play the lead role in the new project.

[9] During the pre-production stage, several actresses including Asin Thottumkal and Nayantara were approached to play the female lead but Hansika Motwani was eventually signed.

The protagonist was revealed to be an unemployed youngster, as unofficial reports of a ticket collector and a band master were brushed aside.

[11] Rajesh planned to retain the same crew members from his first two ventures but since Udhayanidhi wanted Harris Jayaraj to score the music for his debut film, he was signed over Rajesh's usual associate Yuvan Shankar Raja, while the makers decided to proceed with Balasubramaniam as the cinematographer as Sakthi Saravanan was unavailable.

In the song Azhage, which was totally shot in dubai, in between bgms were recreated in VGP beach and matched by art director Jacki.

[18] In the second schedule, director Rajesh shot a scene on Udayanidhi Stalin, Azhagam Perumal and Saranya Ponvannan at KK Nagar.

'Oru Kal Oru Kannadi' music album celebrates love and reflects youngsters, like the previous films of Rajesh.

MuthukumarAll lyrics are written by BhuvanachandraOru Kal Oru Kannadi received positive reviews and became a blockbuster at the box office.

[6] The film began to collect even larger sums of revenue in the next four continuous weeks, acquiring a total of ₹ 15.09 crore in a matter of 25 days in Chennai.