The fact that Marcia Lucas, who was previously married to George Lucas and is now ex-wife of his current collaborator Lawrence Kasdan, had a role in shaping the rough cut of Star Wars into a blockbuster has gone overlooked for decades. If Marcia Lucas had only focused her formidable editing abilities on the film’s thrilling conclusion (the rebel assault on the Death Star), she would have been awarded an Oscar for editing. Her efforts went much further than originally thought.
The first is the explanation of intercutting (or cross-cutting), which begins at 6m50s in the video. Intercutting is a film term that refers to a particular editing strategy. In narrative filmmaking, a more generic (and duller) phrase would be scene ordering.