The BBFC (British Board of Film Classification) has done some games research - which is good, because they're some of the ones who grade videogames for age limits, putting those film-like stickers on them bearing guidance ages...
for example BBFCs "Recent Decisions" list
from http://www.wonderlandblog.com/wonderland/2007/04/bbfcs_game_rese.html w/more
Posted by Stubbornson at April 29, 2007 04:56 AM