A week ahead of its theatrical release, the trailer of Vaa Vaathiyaar has arrived, and it delivers exactly the mix of oddball humour and unexpected turns that director Nalan Kumarasamy is known for. The film stars Karthi as a police officer whose life is shaped by an intense admiration for the legendary MG Ramachandran, an affection he inherits from his father, played by Rajkiran. The trailer wastes no time establishing this father son dynamic, showing them celebrating MGR with unfiltered devotion and theatre level enthusiasm.