Maximum Impact: The Legacy of 'Lethal Weapon' 2012

This documentary showcases producer Joel Silver, Donner, Gibson, Glover, Rene Russo and other members of all four films' production teams as they examine the franchise, look at the various social issues each film tackled, attempt to measure the series' cultural impact and, of course, touch on its legacy, for the actors, the filmmakers and audiences the world over.