- Black Sheep Hit: The title song was this for Lulu, who was more of an uptempo rock 'n' roll singer in general.
- Dueling Movies: Up the Down Staircase was a very similar inner-city educational drama, also released in the summer of 1967.
- Fake Nationality: Poitier is Bahamian-American, not Guyanese.
- Sequel Gap: The TV sequel was made twenty-nine years after the first.
Trivia / To Sir, with Love