research: requiem for a dream

This scene shows the man in the film smoking and injecting drugs, and they have used the fast cut effects to emphasize the effects that the drugs have on him. The sequence features 12 different shots in 7 seconds, which means that one shot is visible for 0.6 seconds on average.

The fast cuts in Requiem for a Dream are used in a serious tone, compared to in Snatch, as the overall context of the scene has reference to a serious issue.