On Kangana Ranaut's 34th birthday, the makers of Thalaivi launched the film's trailer. Thalaivi is the official biopic of former Tamil Nadu Chief Minister J Jayalalithaa. The trailer launch was attended by the cast and crew of Thalaivi. Kangana Ranaut became emotional and was moved to tears when she spoke about director AL Vijay, who directed the film. Thalaivi will release in theatres on April 23 in three languages namely, Tamil, Telugu and Hindi.
Speaking at the trailer launch of Thalaivi, actor Arvind Swami said, "I thank director Vijay sir for bringing together so many great talents. If not for the support of Vijay sir and the confidence he gave me, it would have been impossible for me to do this character. An actor alone cannot make a role or a film success. It involves the hard work of every member in the crew. The exciting part about the film is that I got to work with many talented actors, like Kangana Ranaut. I am working with Madhoo after many years. My journey with Nasser sir goes 30 years back in time. Working with Thambi Ramaiah sir in Thani Oruvan was an amazing experience and I got to work with him again.”