Marcel Bluwal made two documentaries on the Collège de France: the first in 1973 for the ORTF (former French broadcasting corporation), as part of a series of programmes called \textquotedblleftSigne des temps\textquotedblright, broadcasted between 1972 and 1974; and the second produced in 1993 for the INA (National Audio-Visual Institute). These films captured professors, the audience, the staff, buildings, and surrounding streets, offering a wealth of information on the major periods of the institution\textquoterights history. Prof. P...