Since Gran Turismo primarily focuses on Jann Mardenborogh's gaming and early racing years, viewers must be curious about what the British racing driver has done since the events portrayed in the movie's ending. Directed by Neill Blomkamp of District 9 and Elysium fame, Gran Turismo begins by first revealing how the GT Academy was established. It then walks through all the events that led to Jann Mardenborough's recruitment into the academy, where he learned to transfer his simulation driving skills to real-world racing.
https://screenrant.com/gran-turismo-movie-jann-mardenborough-real-life/