Yesterday Millie wrote a post about The Slender Thread (1965) that got me so interested in seeing the film that I put aside a Dirk Bogarde re-watch to see this movie instead. The film is about a college student, Sidney Poitier, who receives a phone call from the suicidal Anne Bancroft while volunteering at a crisis hotline center. Both of them gave mind-blowing performances but I was especially taken with Anne Bancroft. I've actually never seen her in anything before (if you don't count her early role in Don't Bother to Knock) and boy did she impress me! She has such a collected way of falling apart, if that makes any sense.
Do yourself a favor and read Millie's amazing post, and then you have to see this film! Millie has a link to the YouTube upload in her post, so definitely check it out!