Jailer is a black comedy-action film written and directed by Nelson and produced by Kalanithi Maran of Sun Pictures. It stars Rajinikanth in the title role, along with Mohanlal, Jackie Shroff, Shiva Rajkumar, Sunil, Ramya Krishnan, Vinayakan, Mirnaa Menon, and Tamannaah Bhatia.

The film was officially announced in February 2022 with the working title Thalaivar 169, being the 169th film of Rajinikanth, while the official title Jailer was announced in June. Principal photography began in August 2022 in Chennai and wrapped in June 2023. The music is composed by Anirudh Ravichander, while the cinematography and editing were handled by Vijay Kartik Kannan and R. Nirmal. Jailer released theatrically on 10 August 2023.