At age 79, the veteran director, who first came to international attention as the scriptwriter on Martin Scorsese’s 1976 masterpiece “Taxi Driver” and has more recently won kudos, including his first ever best screenplay Oscar nomination, for a trilogy of films on his favorite “man in a room” theme – “First Reformed” (2017), “The Card Counter” (2021) and “Master Gardener” (2022), is still very muc