Which movie was this line by Katherine Hepburn in Calla Lillies Darling?

The line "I'm not going to marry you, I'm going to live with you!" is NOT from the movie "Call Me Madam". That line is actually from the 1962 film "The Long Hot Summer".

The film stars Paul Newman and Joanne Woodward. While Hepburn was in the movie "Call Me Madam", that was a musical, and the line you're referring to is from a drama.