Tangential, but the "Most Replayed" feature on you tube makes me really not want to watch movies on there. Every-time I mouse over the scrubber a graph shows up that shows me exactly what the most rewatched section is, so for instance I immediately know there's an important scene 20 minutes into Assa.
Couldn't it plausibly just be a confusing scene, or have difficult-to-understand dialog? I can think of several things other than importance that might correlate with users re-playing a scene.