A force-directed network diagram visualizes connections between Tom Hanks, film directors, and movies. It uses `d3.forceSimulation` with link, charge, collision, and center forces to position nodes and edges, rendered as SVG circles and lines. Node colors come from a `scaleOrdinal`-like color array based on group membership, while link markers are defined via `defs`. The chart loads JSON data and supports drag interactions, though labels and arrowheads remain unfinished.