In the scene where the DHS agents are looking at security footage, there is a large monitor on the left, filled with text. The first line; 'How about a nice game of:' is followed by a list of games, beginning with 'Falken's Maze' and ending with 'Global Thermonuclear War'. This 'screen' is taken, verbatim, from the Matthew Broderick movie,
WarGames (1983), probably the first ever hacker movie.
