Actress Rachel McAdams turned down the role of Andy Sachs in "The Devil Wears Prada." She was initially offered the part but declined, feeling that she was not ready to take on such a major role at the time. The role ultimately went to Anne Hathaway, who received widespread acclaim for her performance. McAdams' decision allowed her to pursue other projects, further shaping her career path.

Yes, "The Devil Wears Prada" is loosely based on a true story. The film, adapted from Lauren Weisberger's novel of the same name, was inspired by Weisberger's experiences working as an assistant to Anna Wintour, the editor-in-chief of Vogue magazine. The character of Miranda Priestly, portrayed by Meryl Streep, is often seen as a fictionalized version of Wintour. While the plot and characters are dramatized, the underlying themes of the fashion industry's challenges and dynamics reflect real-life experiences.

In "The Devil Wears Prada," Anne Hathaway's character, Andy Sachs, is often described as a size 6. However, Hathaway herself has stated that she was not a size 6 during filming. The character's size is meant to reflect a certain standard in the fashion industry, but Hathaway has emphasized that the focus should be on talent and individuality rather than a specific dress size. The film ultimately conveys a broader message about personal growth and self-acceptance in the face of industry pressures.

As of October 2023, there is no official sequel titled "The Devil Wears Prada 2." However, there have been discussions and rumors about a potential sequel or adaptation of Lauren Weisberger's follow-up novel, "Revenge Wears Prada: The Devil Returns." Despite the interest from fans and some cast members, no concrete plans for a second film have been announced. The original movie, released in 2006, remains a beloved classic in its own right.