OK I admit it isn't actually a movie but is instead an hour-long talk broken down into 10 minute segments. The subject matter is how to reverse engineer a 6502 microprocessor using acid, graphics and transistor level simulation. We covered the basic idea back in September 2010 (see Transistor level 6502 simulation) and the video is basically a presentation of the same ideas with an update.
The video presentations are fairly technical and go into a lot of detail about the 6502 and assembly language but if you are a hardware oriented sort of guy its a lot of fun.
Microsoft has made the source code for early versions of MS-DOS and Word for Windows available in the Computer History Museum which already has a range of significant software programs in its collecti [ ... ]