"840" features a stellar cast, led by Nasir Uddin Khan in the central role. He is joined by other acclaimed actors including Marzuk Russell, Fazlur Rahman Babu, Zakia Bari Momo, Shahriar Nazim Joy, and Zayed Khan. The production also shines a light on local talents, featuring actors from the Rajshahi and Naogaon regions.

Directed by Mostofa Sarwar Farooki, the film has already created a buzz with its recently released trailer, captivating audiences with sharp dialogues and witty one-liners.

Almost 16 years ago, director Mostofa Sarwar Farooki sparked a storm of discussions with his satirical series 420, which highlighted contemporary social and political issues in Bangladesh. Now, he is back with its double-up.