A dark-themed network graph visualizes actor connections from a movie dataset, with each actor as a node and edges linking co-stars. The force-directed layout uses `d3.forceSimulation`, `forceManyBody`, `forceLink`, and `forceCenter` to position nodes and lines dynamically. Actors are parsed from the CSV's `Actors` column, and nodes and links are rendered as SVG circles, text labels, and lines. The visualization updates positions on each simulation tick, showing the relational structure of the cast.