Definition
What is A-roll?
A-roll is the primary footage in an edit: the material that directly carries the main action, interview, presentation, or narrative. Supporting images are commonly called B-roll.
In a documentary interview, the person answering questions is usually the A-roll. In a tutorial, it may be the host’s explanation or the screen recording that shows the essential task. The label is useful because it distinguishes the story-bearing material from coverage that illustrates it.
A-roll does not have to remain visible whenever its audio is heard. An editor can keep a speaker’s voice while cutting to B-roll, a reaction, or a detail. That relationship lets the primary story continue while the picture supplies context, variety, or a cleaner transition.
Example in the edit
A founder explains a new product to camera. Their interview is the A-roll; shots of the product being used are B-roll placed over parts of the answer.
Why editors use it
Knowing which material is A-roll helps crews prioritize clean sound, complete coverage, and accurate storytelling. It also gives editors a clear backbone before they begin adding supporting images.
Quick answers
Frequently asked questions about A-roll
Is A-roll always an interview?
No. It can be any footage that carries the main story, including a presenter, a performance, a demonstration, or a key narrative scene.
Can a video have more than one A-roll source?
Yes. A conversation, multicamera performance, or documentary may use several primary sources, provided each contributes directly to the core story.
Does A-roll need to stay on screen?
No. Its dialogue or natural sound can continue under B-roll through an L-cut or a similar split edit.