A sequence is a self-contained portion of the entire story, usually about 10 to 15 minutes (pages) in length. With a clear beginning, middle, and end, each sequence has its own short-term tension (not the main tension, but related in some way) along with a central conflict that gives shape to the entire 10 -15 minutes.
But the number 8 is only part of the equation. If the sequences are what shape a screenplay’s three-act structure, then the five major plot points are the building blocks behind sequence construction: Inciting Incident, Lock-In, Midpoint, Main Culmination, and Third Act Twist.
Each analysis of selected features will break the film down to the essential parts of each of the 8 separate sequences (9 in specific genres) and 5 major plot points.