People, signs and logos in street footage
A crowded street contains people who never signed a release, shop signs and branded cars. For news, documentary and education that is normal; for an ad or a product video it can be a problem, because a recognisable face or logo can suggest endorsement. Prefer wide shots, night shots and timelapses where nobody is identifiable, or check the clip's editorial flag and the source page.
Timelapses and hyperlapses
A timelapse compresses minutes or hours into seconds: traffic becomes light trails, clouds stream over towers. They make strong openers and transitions and rarely show identifiable people. Many are long enough to cut several shots from; check the frame rate, since a 24 fps timelapse in a 30 fps edit will need conforming.

