Any movie will have to compress characters and events to fit within a reasonable time frame. My suggestion is a 3 part epic ... sort of like Lord of the Rings.

Lord of the Apple - Fellowship of the apple
Steve and Steve, the early years, on the quest to build a computer and found a company.
Lord of the Apple - The Two OSs
Steve & Steve continue the quest and battle Microsofts legions - leads to Steve J being ousted by Scully.
Lord of the Apple - The return of the King
Begins with Steve J returning from the wilderness to Apple to remove the false king.
