Hi Trailer: A week before the release of Hi, the makers of the film have unveiled the official trailer for the upcoming film. Nayanthara and Kavin lead the cast of Hi, which is set to release on August 28.

The trailer opens with the character played by the late K Bhagyaraj, advising his son Mayilsamy (Kavin), to be decisive in the matters of love. In his attempts to find love he subsequently finds failures and ends up taking an extreme step, when he meets Devayani (Nayanthara) by chance. The film hints at the rest of the story being a series of capers resulting as an effect of Mayilsamy's nimble and frightful nature, with Mayilsamy himself wanting to succeed in his romance.

The film was announced in 2024, and was announced to be titled Hi in October 2025. While it was announced to release in August 14, it was later announced to be postponed.

Lyricist Vishnu Edavan, who has worked as an assistant director to Lokesh Kanagaraj, is making his debut as a director with Hi. He has also written for the film.

The cast of Hi also includes Radikaa Sarathkumar, Prabhu, VTV Ganesh, Sathyan, Amrutha Srinivasan, Aadhithya Kadhir, Kureshi, FEFSI Vijayan, Renji Panicker, Kaviya Arivumani, and Mirchy Kemy, among others.

Jen Martin has composed music for Hi, continuing his collaboration with Kavin after Dada (2023) and Kiss (2025). The crew of Hi also includes director of photography Rajesh Shukla, editor Philomin Raj, art director Kannan S, and stunt choreographer Dinesh Kasi.

Nayanthara and Vignesh Shivan are producing the film under their Rowdy Pictures banner along with SS Lalit Kumar who is producing under the Seven Screen Studio banner.