As the film progresses, the set of the Kowalski apartment actually gets smaller to heighten the suggestion of Blanche's increasing claustrophobia.
There were clashes on the set between Vivien Leigh and her fellow cast members. Besides being the only major cast member not to have come from the Broadway production, Leigh was a classically trained actress, whereas most of the other actors studied under the "Stanislavski Method". Even so, Leigh was determined to make a good picture and create a great performance. She reportedly could not wait to get to the set every day, and was often the last lead actor to leave at day's end.
Vivien Leigh, who suffered from bipolar disorder in real life, later had difficulties in distinguishing her real life from that of Blanche DuBois.
The movie's line, "I have always depended on the kindness of strangers," was voted as the #75 movie quote by the American Film Institute (out of 100).
Although Vivien Leigh initially thought Marlon Brando to be affected, and he thought her to be impossibly stuffy and prim, both soon became friends and the cast worked together smoothly.