CHENNAI: On account of actor-producer Sivakarthikeyan’s birthday on February 17, the makers of SK 21 announced that the title teaser of the film will be unveiled on February 16. The film is helmed by Rajkumar Periasamy and has Sai Pallavi playing the female lead.

SK 21 is bankrolled by Kamal Haasan’s Raaj Kamal Films International. Sharing a 70-second clip featuring the behind-the-scenes of Sivakarthikeyan’s physical transformation for the film, the makers wrote, “Hard work-grit and a “can- do” mentality still matters-a great asset now on display…#HeartsonFire #SK21 Title Teaser on 16th Feb at 5pm #Ulaganayagan #KamalHaasan #Sivakarthikeyan #SK21 (sic).” The video ends with the words, ‘Soldier’s body, hero’s heart’.