Someone has posted a long segment from Godfrey Reggio’s 1983 film Koyaanisqatsi that includes the famous aerial footage of the vacant housing project and the explosion-based demolition that took down the entire complex between 1972 and 1974.
The Pruitt-Igoe sequence begins at 2:49.
Thirty-three acres of the originally 57-acre Pruitt-Igoe site at the southeast corner of Cass and Jefferson avenues remain vacant to this day.