Four act structure

ACT I – The Loner
Sequence #1 ( 01-10) Setup: Protagonist In The Ordinary World
Sequence #2 ( 11-20) Call to Adventure / Predicament / Inciting Incident
Sequence #3 (21-30) Turing Point: Change Of Plans / New Lower Obstacles

ACT II – The Wanderer
Sequence #4 ( 31-40) Elaborating on the Dilemma and The World of Story
Sequence #5 ( 41-50) Hero encounters TESTS, ALLIES, and ENEMIES.
Sequence #6 (51-60) Point Of No Return / Discovery Of False Goal

ACT III – Towards The True Goal: The Warrior Phase
Sequence #7 ( 61-70) Complications, Higher Stakes, And Subplots
Sequence #8 ( 71-80) Culmination Toward The Main Plot
Sequence #9 (81-90 ) All Hope Is Lost

ACT IV – Result Of The Action: The Martyr
Sequence #10 ( 91-95 ) Final Push Toward The Main Plot
Sequence #11 ( 96-100) False Resolution (The Twist)
Sequence #12 (101-105) Final Test of Character and True Resolution
Sequence #13 (106-110) Final Confrontation
Sequence #14 (111-115) Climax

http://mscherer.wordpress.com/2008/06/20/the-four-act-structure/