The Champion (Polish: Mistrz, lit. "The Master"), released in some English-speaking countries as The Champion of Auschwitz, is a 2020 Polish sports drama film written and directed by Maciej Barczewski. It stars Piotr Głowacki as Tadeusz Pietrzykowski, a real-life Polish boxer who became famous for his nearly undefeated strings of victories in the Nazi concentration camps. The film also stars Rafal Zawierucha, Marcin Czarnik and Marian Dziedziel. The music was composed by Bartosz Chajdecki. This is the first full-length movie directed by Barczewski.The film premiered at the Gdynia Polish Film Festival on 8 December 2020.The Champion is notable for being the first film for which a foreign-language version (in English) was created in which the actors' facial movements are modified so that they appear to be speaking that language. The work was done using a technology similar to deepfake, proprietary to the Tel Aviv-based tech startup Adapt Entertainment, which bought the English-language distribution rights for The Champion so that it could serve as a proof of concept for its technology.