Firewall is a 2006 British-American thriller film directed by Richard Loncraine and written by Joe Forte. Harrison Ford stars as Jack Stanfield, a security expert at a bank faced with a corporate merger and the offer of a new job.

The film opens with Jack Stanfield (Harrison Ford) leaving his house, loving wife Beth (Virginia Madsen) and two children, to his job at Landrock Pacific Bank in downtown Seattle. The day goes smoothly until Jack is visited by a collection agency, claiming that he owes $95,000 in debts to their online gambling site. He trusts a colleague to take care of it (as he is convinced of some form of identity theft) and goes out for dinner with colleague Harry and potential employer, Bill Cox (Paul Bettany). After the meal, Harry leaves in a taxi and Jack gets in his car. Unexpectedly, Cox follows him into the back seat. Cox then goes on to tell Jack that his family is being held hostage at their home to ensure Jack's cooperation. He then points a gun to Jack's head and forces him to drive home.

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A film, also called a movie or motion picture, is a series of still or moving images. It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects. The process of filmmaking has developed into an art form and industry.

Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating – or indoctrinating – citizens. The visual elements of cinema give motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue into the language of the viewer.

Films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.