]The film's screenplay, by first-time scripter Bruce Robinson, was adapted from Pulitzer Prize-winningNY Timesreporter Sydney Schanberg'sThe Death and Life of Dith PranfromThe NY Times Magazine.He demands to know why Mulwray is denying water to his livestock and crops, and then accuses the engineer of being paid off to divert water from the farms in the valley:You steal water from the valley.When all of the dump trucks had reached the dam and outer exit, Gruber ordered the aqueduct flooded ("We blow the dam, we drown him"), although Mathias was angered with Gruber for toying with McClane too long: "You jeopardized the mission and the contract.Martin Nilsen (Daniel Von Bargen) notices Nick has begun to drink again and baits him with his doubly-suggestive nickname: "Hey, Shooter - you back on the Black Jack, Shooter?.He then took a sword and stabbed it down in-between several overlapping chain links.When they crossed the collapsing and burning rickety bridge with the Dragon close behind, the chain (now stretched to its full length) jerked the Dragon's head back, and it was unable to reach them.