Strange, I've just had a look and I don't get any
hideous ascii 9.2 thats displayed on the bottom right of the shell
Wouldn't it be easier, to have the system to be filmed, open, with xserver running, some sort of really manic background/wallpaper with a konsole open (make sure you have the desktop configured for transparency so the mad wall paper shows through the konsole), and get the actor to just imput any command that will give a goodly amount of on screen text - or running nmap "a la matrix reloaded" ???