Bryan Colley at 2012-11-29 19:06:04:
The middle. All the books, teachers, lectures, etc. focus on the first act, or the first 10 pages, or the first 3 pages, or the first two words.
I can write a great opening act, and I can conclude a story, but keeping that thing chugging for 50-60 pages through the middle is where most of my scripts get lost.