What Is A B-Roll?

B-roll is essential for your documentary.  Check out this article with embedded videos for a closer explanation and examination of it.

B-roll is essentially alternative footage to your main footage captured. A-roll is your main footage, for example if you interview a construction worker the A-roll will be them talking and responding to the interview questions. The B-roll would be different shots of them doing their job fixing or operating things etc. B-roll takes many different forms, for example stock footage, newly acquired footage, still pictures, animations, etc. The best time to get B-roll is after you film all of your A-roll footage. The main purpose of B-roll is to get the extra potential footage you might use/need. You might prefer something you filmed in your B-roll shoot rather than the A-roll you captured. It's very important to get B-roll in any sort of film you make. 

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