B-reel

Noun

 * 1)  The second piece of film or audio or video tape in a situation (as editing or broadcasting) where multiple inputs are used.
 * 2)   or supplemental footage to be intercut with principle film or video.
 * 1)   or supplemental footage to be intercut with principle film or video.
 * 1)   or supplemental footage to be intercut with principle film or video.
 * 1)   or supplemental footage to be intercut with principle film or video.
 * 1)   or supplemental footage to be intercut with principle film or video.