The role of the soundtrack in a movie

Main functions of the soundtrack

Emotional impact
Music can enhance the emotions evoked by a scene, whether it be joy, sadness, tension or fear. For example, dramatic music can make a scene more tragic, while funny music can add comic relief.
Example: Hans Zimmer's music in the movie Interstellar creates a powerful emotional impact by supporting epic and touching moments.

Creating atmosphere
Music helps to create a certain atmosphere, immersing the viewer into the world of the movie. This is especially important for movies in the fantasy, science fiction, and horror genres.
Example: John Williams' soundtrack for Harry Potter and the Philosopher's Stone helps create a magical atmosphere.

Plot Development
Music can accompany plot twists and changes in the mood of a movie, emphasizing key moments.
Example: In the movie Jaws, John Williams' music warns the audience of an approaching shark, creating suspense.

Characterization of characters
Leitmotifs or recurring musical themes can be associated with certain characters, helping the viewer to better understand their character and motivations.
Example: In Star Wars, Darth Vader's theme (The Imperial March) is immediately associated with his presence and villainous nature.

Creating rhythm and tempo
Music can set the rhythm of a scene, emphasizing the dynamics of the action or, conversely, slowing down the pace to create tension.
Example: In the movie Rush, the soundtrack helps emphasize the speed and tension of the racing scenes.
Examples of outstanding soundtracks
"Titanic: James Horner's soundtrack creates a romantic and tragic atmosphere, enhancing the emotional impact of the movie.
"The Dark Knight: Music by Hans Zimmer and James Newton Howard emphasizes the tension and darkness of the film.
"The Lord of the Rings:
Howard Shore's compositions create an epic and fantasy atmosphere perfect for the world of Middle-earth.