The cinematography and editing were handled by Sameer Thahir and Vivek Harshan, while the music was composed by Alphonse Joseph and Gopi Sundar.

ACP Balaji Shakthivel and CI George are assigned to investigate Mary's murder case, where they begin the investigation and learns that the murder was one of the many meticulously planned operations aimed at checking Mary's intrusions into the unlawful exporting of children from Kochi.

Big B initially received mixed to negative reviews from the critics as family films were dominant back then.

Later on, it received critical acclaim for its cinematography and making, along with the use of few dialogues, dark color tone, and extensive use of slow-motion and musical score, which redefines that an age-old mass action drama can be converted with a unique and fresh style.

[6][7] The soundtrack album was composed by Alphons Joseph with lyrics penned by Jophy Tharakan and Santhosh Varma.

While the musical score was composed by Gopi Sundar, Shreya Ghoshal sang her first song in Malayalam through this film.

A sequel titled Bilal was announced by Amal Neerad on 17 November 2017 and was set to start principal photography in March 2020 but was postponed indefinitely owing to COVID-19 pandemic and has been in pre-production due to script changes and scale.