The top mistakes in Post Impact http://www.moviemistakes.com/film6936 en Sat, 29 Nov 2008 06:55:30 +0000 127688 In the very beginning, just before impact, Walker goes out onto the balcony for a supposed security breach. Over the radio, the other officer refers to him as Sgt. Walker, but he, and others refer to him as Capt. Walker.