Trivia: Early in production, the film was under the working title "Die Hard 24/7", leading many media outlets and fans to speculate that the film was to be a crossover with another popular Fox property- the television series "24." (An unnamed studio insider even told a popular movie-reporting site that Fox had been tinkering with the idea very early in production to try and shake-up and revitalize both franchises.) The title and concept of the film were subsequently changed.
Trivia: The only film in the "Die Hard" franchise to specifically be written as an original "Die Hard" script not inspired by outside source materials. "Die Hard" was based on a novel titled "Nothing Lasts Forever." "Die Hard 2" was loosely adapted from another novel entitled "58 minutes." "Die Hard with a Vengeance" was a re-worked version of an earlier script entitled "Simon Says." "Live Free or Die Hard/Die Hard 4.0" was a combination of ideas inspired by a Wired Magazine article ("A Farewell to Arms") and elements from another script entitled "WW3.com." Ironically, despite being the only film in the franchise to be specifically conceived of as a "Die Hard" film, it was the lowest-rated film in the franchise by critics and audience polls.
Trivia: Following this film's critical and commercial failure, the studio discussed the idea of a prequel, which was described as being John McClane's origin story, with a younger actor taking over the lead role. This idea was largely rejected by fans, as they felt the first film in the series functions as McClane's origin story.
Answer: His name was Anton. He was an associate of Viktor Chagarin. Jack, although lying, said Yuri Komarov sends his regards. Chagarin and Komarov were former partners and Chagarin was the one who got Komarov put in jail. By Jack saying Komarov sent him, it made it seem like Komarov was out for revenge on Chagarin (by attacking his associates). The courts offered to reduce Jack's sentence for testifying against Komarov, which allowed Jack to get close to him and help him escape.
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