That is the sequel to Tropa de Elite (2007), by the same director, Jose Padilha. I strongly recommend watching Tropa de Elite first.

https://www.imdb.com/title/tt0861739/

The same director's documentary Bus 174 (2002) is even much more intense and unforgettable.

https://www.imdb.com/title/tt0340468/

He also created the amazing series The Mechanism (2018-), based on the Operation Car Wash investigations, during the last 10 years, into corruption in Brazil.

https://www.imdb.com/title/tt6873658/

https://en.wikipedia.org/wiki/Operation_Car_Wash