Aharon Rabinowitz and All Bets Are Off Productions have released The
Crowd Control Library of Pre-Keyed Alpha Stock Footage
(http://allbetsareoff.com/products/crowd-control/). Pricing ranges
from US$10 to $50 per clip.

Crowd Control is a stock-footage library of actors keyed out from
their green screen background, and ready to be added directly into
motion graphics, 3D architecture, and visual effects projects. It has
over 45,000 clips and over 500 actors., Crowd Control has a variety
of themes, including sports, holiday, romance, religion, fantasy and
science fiction, as well as business and telecommunications.

The format is QuickTime Pro. It’s compatible with Adobe After
Effects, Adobe Flash, Adobe Premiere Pro, Apple Final Cut Pro, Apple
Motion, Avid Media Composer, Sony Vegas Pro, most 3D applications,
most video editing apps and most compositing applications.