Tron

Ignore the jargon, enjoy the film.

If you can get past the jargon and accept that a programmer already knows how a computer works, and therefore doesn't need to the learn the new environment totally. Then we have a quite enjoyable film, most geeks will probably enjoy it anyway.

The writers did do a reasonable job keeping to some computing concepts, such as clock cycles, on/off or yes/no states. Either way we have an interesting film which is shot with interesting lighting, and almost in two dimensions when "inside" the pc.

We have our programmer Kevin that is captured and transported into the internals of a computer. Once inside he finds a world that is being taken over by a rogue program called Master Control. Master control wants perfection and order, and also to get into the real world.

Kevin must find allies and beat the Master Control Program at a series of computer games if he is to ever return to the outside world. Kevin does find a powerful program, Tron, whom he is able to free. After which Tron remembers that he was built to defend other programs, like a security patrol. Together Kevin and Tron may be able to defeat Master Control, but the clock cycles are running (time is ticking).