Manjummel Boys is a 2024 Indian Malayalam-language survival thriller film written and directed by Chidambaram. It is produced by Soubin Shahir, Babu Shahir and Shawn Antony under Parava Films. The film stars an ensemble cast, which includes Soubin Shahir, Sreenath Bhasi, Deepak Parambol, Balu Varghese, Ganapathi S. Poduval, Lal Jr., Abhiram Radhakrishnan, Arun Kurian, Khalid Rahman and Shebin Benson. Based on a Guna Caves rescue in 2006, in the film, a group of friends from a small locality called Manjummel near Kochi, who decide to have a vacation in Kodaikanal, which is affected when one of them becomes trapped in the Guna Caves.

The film was officially announced in January 2023. Principal photography commenced the same month and wrapped by mid-July. It was shot across Kodaikanal, Kochi and Perumbavoor, with some parts of the film also being shot at Guna Cave itself. The film has music composed by Sushin Shyam, cinematography by Shyju Khalid and editing by Vivek Harshan.

Manjummel Boys was released worldwide on 22 February 2024 in theaters to critical acclaim with praise for its technical aspects, cast performances, background score, writing, and direction. It set several box office records for a Malayalam film, emerging as the first film in the Malayalam cinema to earn more than ₹200 crore, the highest grossing Malayalam film ever, until it was surpassed by L2: Empuraan (2025), and the highest-grossing Indian film in the month of February.