Director John Gibson yells “action” as he watches the monitor Mike Williams is holding to display the footage being filmed by videographer Don Warren Thursday at the Vicksburg National Military Park. The three were shooting one of the last segments of a commercial for the Vicksburg Convention Center. The commercial will run in Jackson and surrounding states in order to promote Vicksburg and the Vicksburg Convention Center. (The Vicksburg Post/MELANIE DUNCAN)