One technique powerfully employed in the film has the incongruous name of "Mickey Mousing." Named after the manner in which classic cartoons were scored in tight synchrony with the movements of their characters, it had fallen into disuse by the nineteen-seventies, when a subtler cinematic style prevailed.
Ennio Morricone's iconic soundtracks, recorded at Forum Studios, reflect unparalleled creativity, influencing film music immensely since its establishment in 1969 alongside other great composers.
Lady Gaga caused a stir at the Venice press conference when she stated that she doesn’t necessarily consider ‘Joker: Folie à Deux’ to be a musical, despite its heavy use of music and singing throughout. She suggested that music in the film serves as an emotional expression when dialogue falls flat. This assertion left many puzzled, as it contradicts conventional definitions of musicals, particularly since promotional materials had strongly indicated that audiences were in for a musical experience.