A short film demonstrating the “surprising limits of perception, attention, and awareness.”  Viewers are instructed to count bounces or baskets made by one team, and in doing so, completely miss that a person in a gorilla suit walks among the players!  Viewers are astounded when viewing the video a second time and seeing the gorilla.   The video is part of a 2003 DVD Surprising Studies of Visual Awareness, Volume 1 produced by Viscog Productions, Inc.