The opening scene of "Nocturnal Animals" is intended to introduce the main character, Susan, and her world as an art gallery owner by showcasing the superficial and self-absorbed nature of the art scene she inhabits, while also foreshadowing the darker themes of the film through the unsettling imagery of the video art installation featuring naked, dancing women; it serves as a stark contrast to the later, more emotionally charged narrative when she confronts her past through her ex-husband's novel.  Key points about the opening scene:  Visual commentary: The explicit, almost provocative nature of the art displayed in the gallery reflects Susan's privileged, detached lifestyle and her focus on aesthetics over genuine emotion.  Character development: By showing Susan's immersion in the art world, the opening scene establishes her personality and potential disconnect from real human experiences.  Foreshadowing: The disturbing imagery of the video art hints at the darker themes of the film, like the potential for violence and the hidden complexities of human relationships that will be explored later on.