The film is based on Joyce Carol Oates’ novel, which is a fictionalized reimagining of Marilyn Monroe's life rather than a strict historical biography.
As a Netflix original film, it is the primary platform where you can find the movie with official Portuguese subtitles and audio options. Blonde Legendas PortuguГЄs (pt)
In Portugal and Brazil, movie titles are often drastically changed for local audiences. For example, in Brazil, the title Blonde was released as Rubia in some contexts, though it is widely known by its original title on streaming platforms. The film is based on Joyce Carol Oates’