My Fair Lady is a musical based on George Bernard Shaw's play "Pygmalion" about a linguistics professor who turns a Cockney flower girl into a refined lady. It features memorable songs such as "The Rain in Spain" and "I Could Have Danced All Night."
The poster's title typography bears a striking resemblance to Jason Anthony Walcott's Lady Fair font, with the swash "m" and first "a" in the title likely obtained from alternate letter options within the font.