The following weapons were used in the film World War Z: . Similar composite carbines appeared in Blood Diamond and Black Hawk Down. Colt Model. It's true though, diamonds are a about as rare as the crap that comes out of your ass. People are fucking. In the film's opening, Danny Archer (Leonardo DiCaprio) carries a sub-compact Glock variant, which is most likely a Glock 26 and hands it over when stopped by.