Each bubble is one film. Bubble size reflects rating. Bubble colour
matches the era in which the film was released (see the legend below the chart).
Group by decade: arranges bubbles by release decade.
Group by rating: arranges bubbles by rating; 0–0.5
shares one band, then each half-point step, up to 10.
Group at center: pulls all bubbles into a single
cluster in the middle of the chart.
Legend (era): click a colour band to split the chart:
films from that era move to the right; all other eras gather on the
left. Click the same band again, or use the toolbar buttons above, to
leave this layout.
Hover: a tooltip shows title, year of release, and
rating.