The long-expected spin off from the popular 'Die Hard' series, starring Bruce Willis, is in the final rounds of pre-production. Another two actors have been added to the cast and the fourth part, 'Live Free or Die Hard' will begin shooting this month.

Justin Long ('Accepted', 'Jeepers Creepers') and Maggie Q ('Naked Weapon', 'Mission: Impossible III') are to appear next to Willis on the big screen. While Bruce will reprise his part as the bad-ass cop, best known for his 'Yippee-Kai-Yay, motherf***er!' interjection, Long will play the part of his young assistant, helping him fight back the national threat.

The gorgeous Asian actress, Maggie Q, will play the role of the sexy hacker, one of the aids of the mastermind who plans to bring America down, by means of a very well orchestrated attack on the national computer system. But little do the 'bad guys' know of the danger that awaits them in the person of the very traditional cop (meaning the man who still battles evil with the strength of his fist) McClane.

Len Wiseman ('Underworld') is directing, from a script penned by Mark Bomback and Doug Richardson. Production will go to Arnold Rifkin. 'Live Free or Die Hard' starts shooting this month and, for all the fans out there, it has been scheduled for release on June 29, 2007.