This scatterplot visualizes IMDB’s Top 250 movies, plotting each film’s release year on the x-axis against its runtime in minutes on the y-axis. Circle size encodes the movie’s rating, while color distinguishes its primary genre. The visualization uses D3 v7 scales including `scaleLinear`, `scaleSqrt`, and `scaleOrdinal` for positioning, radius, and categorical coloring, with React managing the SVG lifecycle. Data is loaded from a CSV file and filtered to exclude missing values before rendering.