Jean Harris served her prison term at the Bedford Hills Correctional Institute. It still functions as a women's prison. In a strange coincidence, the name of the road that leads to the main gate is Harris Road.
The Tarnower bedroom depicted in the film is an exact replica, down to the smallest detail, of Herman Tarnower's bedroom as it was in 1980. As was the Tarnower dining room/trophy room, however, in the film more animal heads cover the walls.