Die Hard - Production

Production

Die Hard follows its source material — Roderick Thorp's novel Nothing Lasts Forever — closely; many of the film's memorable scenes, characters, and dialogue are taken directly from the novel. Nothing Lasts Forever, a sequel to Thorp's earlier novel The Detective, was written with the intention of being adapted into a film sequel to the film adaptation of The Detective, which starred Frank Sinatra. When Sinatra turned down the offer to star in the sequel, the story was altered to be a stand-alone film with no connections to The Detective. Other changes included the older hero of the novel becoming younger, the hero's daughter becoming his wife, and the American Klaxon Oil Corporation becoming the Japanese Nakatomi Corporation. The novel's tone is darker and more serious than the film's, and the politically motivated fighters of the novel became thieves pretending to be terrorists in the film. Director John McTiernan states on the DVD commentary that the change from a tale of political terrorism to a heist film was made because he wanted to bring "joy" to the story, rather than having the villains be overly ponderous; he also liked the notion of Cold War-era terrorists throwing aside their beliefs in pursuit of capitalist spoils. The newly built corporate headquarters of 20th Century Fox, Fox Plaza in Los Angeles, was used for exterior shots of the Nakatomi building.

According to commentary from the film's DVD release, Alan Rickman's surprise when Gruber is dropped from the building is genuine: the director chose to release Rickman a full second before he expected it in order to get genuine surprise, a move which angered Rickman. The text commentary track also reveals that the shooting script did not originally feature the meeting between McClane and Gruber pretending to be a hostage; it was only written in when it was discovered that Rickman could perform a rather convincing American accent. The name Hans Gruber was used by one of the villains in the 1966 film Our Man Flint.