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Why was 2013 so good for documentaries?

19 December 2013 Last updated at 00:10 GMT

This year has witnessed a wave of strong documentaries.

The recent unrest in Egypt, killer whales in captivity, and the struggles of backing vocalists are just a few of the subjects explored in a range of new award winning documentary films which appear to be satisfying both audiences and film critics.

Talking Movies' Tom Brook reports.