Clients often request changes in mood and perspective. Traditionally, changing mood and perspective is accomplished by educating clients about their patterns, encouraging them to change their behaviors and thoughts. But, experiential methods can be more immediately effective.
All art is, by definition "experiential." And altering mood and perspective is the point of it - whether drama, painting, literature, dance, or music. Movies use multilayered methods for change. The viewer is often unaware of the intricate dramatic, experiential methods that filmmakers use to exert influence.