Lethal Weapon 4 (1998)
Boam's unused script was built around Riggs and Murtaugh dealing with neo-Nazi survivalists, who were launching a terrorist attack in Los Angeles. This script was written sometime in January of 1995, and according to Boam, it dealt with real-life neo-Nazi activity in the U.S., that was only superficially dealt with in only one movie before, Dead Bang (1989). It was also going to be more serious sequel, much like the first film, and was going to be darker and edgier.
Interviewed after the release of this movie, he remarked that he thought the counterfeiting of Chinese money was hardly a matter to create the suspense appropriate to a Lethal Weapon film, and also said how his script was much better from the final movie, which suffered some problems with constant re-writes, and actually didn't have a completed script during filming.