His masterpieces *The Godfather* films and *The Conversation* are quintessential explorations of American corruption, institutional power, and paranoia during the 1970s.
Martin Scorsese USAFilms like *Taxi Driver* and *Mean Streets* capture the gritty urban decay, violence, and moral ambiguity of 1970s America with unmatched authenticity.
Sidney Lumet USAHis socially conscious thrillers including *Dog Day Afternoon*, *Network*, and *Serpico* directly interrogate American institutions and the era's political turbulence.