Definition:
A character speaks. The audience hears them. But no one on screen is talking. Voice-over is narration delivered over the visuals of a film by a character or narrator whose voice exists outside the action being shown: commenting on it, interpreting it, or providing context that the images alone do not supply.
What It Means in Movies:
Voice-over places a second layer of meaning over the image. The most interesting uses of voice-over create a gap between what the narrator says and what the audience sees, letting irony, unreliability, and self-deception do the work that a direct statement cannot.
Why It Matters:
Voice-over is a contested tool. Critics argue that reliance on narration indicates a screenplay that does not trust its own visual storytelling. Defenders argue that it is a legitimate and powerful technique when deployed with intention. Both are right, depending on the film.
Example:
In Goodfellas, Henry Hill's voice-over narration runs almost continuously, providing retrospective self-justification that sits in permanent ironic tension with the violence and moral collapse the film is actually showing. The voice tells one story. The images tell another.