White savior narrative in film

The white savior is a cinematic trope in which a white central character rescues non-white (often less prominent) characters from unfortunate circumstances. This recurs in an array of genres in American cinema, wherein a white protagonist is portrayed as a messianic figure who often gains some insight or introspection in the course of rescuing non-white characters (or occasionally non-human alien races that substitute as non-white civilizations) from their plight.

Source: Wikipedia — White savior narrative in film (CC BY-SA 4.0)