To Sir, With Love is based on a 1959 autobiographical novel by E.R. Braithwaite. The British drama features an idealistic teacher trying to connect with his East End students who have been thrown away by society.
If I understand the poster’s credits correctly, it was designed by György Kemény (credited as “KEMÉNY GY”) and offset-printed by Bors Ferenc for Magyar Hirdető, Hungary’s state-run advertising agency whose logo is in the top right corner. Some versions of the poster (presumably the originals) also feature the logo of Hungary’s state-run film distributor, MOKÉP, in the top left corner.
The poster features the Ringlet typeface, set freeform – perhaps as dry transfer lettering – on a yellow band, wrapping around an illustrated portrait of Poitier’s face, which is filled with a red and green sunburst pattern. Windsor and Ludlow Black are used for supporting text.
The extra-small type on the poster appears to be Elegant-Grotesk and Futura (or similar) for the publishing credits and Kemény’s design credit, respectively.