O21 (or Operation 21 formerly The Extortionist[3]) is a 2014 Pakistani spy thriller film,[4] directed by Jami, and Summer Nicks[5] and produced by Zeba Bakhtiar and her son Azaan Sami Khan.

Zeba Bakhtiar is the film's executive producer and the lead roles are played by Aamina Sheikh, winner of the best actress prize at the New York International Film Festival, the renowned actor Shaan Shahid who has received accolades through countless Pakistani blockbusters, most recently Waar.

He works with his Pakistani ally Kashif Siddiqui (Shaan Shahid) to save the two neighboring countries from further turmoil through a plan that could risk the lives of them and their families.

O21 was primarily filmed on Red Epic Cameras with Cooke s4/i lenses however the ARRI Alexa XR was used in certain scenes as well.

[1][19] Hala Syed of DAWN.com rated the film 4/5 and wrote "It does not glorify war but depicts it in a gritty realistic, thought provoking way.

"[22] Faria Syed of HiP wrote "The film is thrilling, visually stunning and well-acted with multiple layers of story.

"[23] Umer Ali of Skotato rated 4/5 and wrote "It is the best film ever produced in Pakistan in terms of brains and execution and it is a must watch if you are a spy thriller geek.

"[25] Afra Jamal of Daily Times wrote "Operation O21 is poised to be a game changer that challenges the palate and forges its own identity from a fragmented landscape.

and Na Maloom Afraad, as people started protesting and throwing bottles on screen as the film did not exactly live up to their expectation.

"[29] On 13 October 2014 film's production team gathered at the Karachi Press Club to address the "injustice" meted out to them by cinema owners of Bambino, Capri and Dreamland for taking down O21 after 25 minutes of screening.