Fig. 2

Variations in mean shot duration (in seconds) across the duration-normalized films of three different eras of popular movies. The extents of the vertical axes show equal variance in the data across the three panels. The statistical lines and regions of the middle and right panels are as they were in Fig. 1; there is no reliable pattern in the left panel. Vertical lines in all panels separate the bins into the four narrative sections, as in Fig. 1