https://www.nfb.ca/film/ninth_floor/

Director Mina Shum makes her foray into feature documentary by reopening the file on a watershed moment in Canadian race relations – the infamous Sir George Williams Riot. Over four decades after a group of Caribbean students accused their professor of racism, triggering an explosive student uprising, Shum locates the protagonists and listens as they set the record straight, trying to make peace with the past