Acting
A man watches TV alone. A series of obliquely malevolent doppelgangers appear and slowly usurp his entire apartment. 20,000 still photos, played back at varying speeds.
The utilization of numerical oscillation models by physicists to accurately predict and map the simple harmonic motion of a spring device, and the utilization of timelapse photography to predict the "motion" of a spring day. 14,000 still photos, played back at varying speeds.
That feeling of dread you experience before beginning strenuous exercise, but also a movie. 8,000 still photos played back at varying frame rates.