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Si3 (also known as Singam 3) is an upcoming 2017 Indian Tamil-language action-masala film written and directed by Hari. A sequel to Singam II (2013) and the third film in the Singam franchise, it stars Suriya, Anushka Shetty and Shruti Haasan in the lead roles.
Principal photography commenced in January 2016 in Visakhapatnam, Andhra Pradesh. The film is scheduled for a worldwide release on 9 February 2017 along with the Telugu dubbed version, Yamudu 3.
Following the commercial success of Singam 2, Hari was keen to collaborate with Suriya for another action film with a fresh script away from the Singam franchise, and agreed terms in principle with the actor in October 2014.[5] Hari revealed that as a result of pressure from those around him, he later developed the one-line story from the film into a script for a third part of Singam.
While the first film was primarily shot within Tamil Nadu and the second featured a few scenes in South Africa, Hari stated that the third part would be more “international” and would be set in three countries as the protagonist tackles a global issue. While most of the cast was retained from the earlier films, Shruti Haasan was added to the team in July 2015 to portray another leading female role, while Anirudh Ravichander was signed as the music composer replacing Devi Sri Prasad.
Anirudh later opted out of the project citing scheduling issues and Harris Jayaraj was brought in to compose the film’s music. Vivek, who portrayed the police officer Erimalai in the first two films, declined to reprise his role in this film as he felt he “did not have a meaty role in it”. New actors to the series including Radhika, Soori, Robo Shankar, Krish and Nithin Sathya were added to the cast, while Thakur Anoop Singh was signed on to portray the lead antagonist. The start of the film’s shoot, initially scheduled for December 2015, was delayed as a result of the 2015 South Indian floods. Production began in Visakhapatnam during January 2015 with scenes featuring Shruti Haasan as a journalist being shot. Following a series of action sequences shot in the city, the team moved to film song sequences in Romania with Anushka joining the team. After a production break, the team restarted the shoot in Visakhapatnam, before moving to the Talakona Forest region and then on the AVM Studios in Chennai during mid-2016.
The team moved to Malaysia to finish filming the climax in October 2016, before a further song was shot in Georgia with Suriya and Shruti Haasan. In January 2017, the film was re-titled from S3 to Si3 (spelt ??3 in Tamil) to exploit the Tamil Nadu Government’s rule of entertainment tax exemption for films titled in Tamil.