B-roll

B-roll is the supplementary footage you cut in over your main shot, the close-ups, wide views, product details, and atmosphere that surround the central action. The term comes from film editing, where the primary footage of a subject speaking was the A-roll and everything layered around it was the B-roll. In a promo video, A-roll might be a person talking to camera while B-roll shows their hands pouring coffee, a sign on the door, steam rising off a plate. Good b-roll does three jobs: it hides cuts so an edit feels seamless, it shows rather than tells so claims land harder, and it keeps the eye moving so a viewer does not scroll away. Without it, even a well-written video feels flat and static, like a single locked-off camera pointed at a talking head for thirty straight seconds. Editors plan b-roll deliberately, listing the cutaways a script implies so the footage exists when the edit needs it.

What makes b-roll work

The best b-roll is specific and motivated. If the script mentions fresh ingredients, show the ingredients. If it promises a fast workout, show the movement. Plan it on your shot list so you capture the cutaways while you are already filming, not as an afterthought.

B-roll in short-form

In short-form video the b-roll cadence is faster, often a new shot every one to two seconds, which is part of why these formats feel kinetic. Map the rhythm in advance on a storyboard so the cuts land with the beats of the video script.