Michael Mann began developing the movie 'Heat', aiming to create an intense crime thriller focusing on the lives of both law enforcement and criminals.
Al Pacino and Robert De Niro were cast as the lead characters, a significant choice given their prominence and previous work; the casting added high anticipation to the project.
Principal photography for the movie 'Heat' officially started, marking the beginning of the production phase of the film.
'Heat', directed by Michael Mann and starring Al Pacino and Robert De Niro, was released to theaters, becoming highly influential in the crime thriller genre.