Justin Long and Maggie Q joining Bruce Willis in the cast of Live Free or Die Hard for 20th Century Fox.

In the fourth installment of the Die Hard series, the story centers on an attack on the U.S.' computer infrastructure that begins to shut the country down; the mysterious figure behind the scheme has figured out every digital angle but never counts on an old-fashioned "analog" John McClane (Willis). According to The Hollywood Reporter, Justin will play a smart, younger guy who assists McClane; Maggie Q will be a world-class hacker at odds with McClane.

Production on Live Free or Die Hard begins this month.

Live Free or Die Hard was released June 27th, 2007 and stars Bruce Willis, Timothy Olyphant, Justin Long, Maggie Q, Cliff Curtis, Jonathan Sadowski, Andrew Friedman, Kevin Smith. The film is directed by Len Wiseman.