For HN Readers who care little about an obscure computer from the UK, Micro Men is an incredible movie about the people behind the 80s UK computer revolution and the chip design at the core of pretty much every modern smartphone. It's as much about the egos, the business behind it all and the race for dominance over the burgeoning home computer market as anything else, and has Martin Freeman and Alexander Armstrong in title roles.

http://www.youtube.com/watch?v=xEV1gefvy_k

Incidentally, Acorn (who ended up getting the BBC project) went on to design their own CPU for their next generation computing lineup, a funny little chip design called the Advanced Risc Machine, or ARM, now the most use CPU design in the world.