A stacked bar chart displays the distribution of IMDb rating categories across six movie genres, with each bar representing a genre and segments showing the proportion of ratings from "below 5.0" to "above 8.5". The visualization uses d3.stack() to compute layered data and d3.scaleOrdinal for color encoding, rendering SVG rectangles within a band scale for genres. Interactive tooltips, implemented via mouse events and a positioned HTML div, reveal exact percentages per segment on hover, while axes and labels are generated using d3.axisBottom and d3.axisLeft.