Which filming technique involves separate footage not part of the main narrative?

The correct answer is B-roll footage, a technique commonly used in filmmaking and video production where additional footage that is not part of the main narrative is included. B-roll serves several purposes; it can provide context, enhance storytelling, add visual interest, and create a more dynamic viewing experience. This supplementary footage is often used to illustrate what the main subject is discussing or to support the primary storyline without directly being part of it.

For instance, if an interviewee talks about a specific location or event, B-roll might show that location or footage of the event to visually engage the audience and reinforce the spoken content. This technique helps to maintain the viewer's attention and provides necessary context that enriches the narrative. By filling in gaps in storytelling or providing alternative visuals, B-roll can effectively enhance the overall production quality and storytelling depth.