A force-directed network diagram visualizes relationships between films, actors, and directors from a JSON dataset. Nodes are color-coded by group and sized uniformly, while links represent connections such as "Acted in" or "Directed." The visualization uses D3 v6's `d3.forceSimulation` with link, charge, collision, and centering forces, rendered as SVG circles and lines. Interactive dragging updates node positions via `d3.drag`, with markers indicating link direction.