Script breakdown, business plan, etc. are covered here:
“Have a plan for the movie when it is complete. Will you take the festival route? Will you market it to colleges and universities? Will you send it directly to sales agents and acquisition pros?
Note: While it’s great to imagine that a movie distributor will hand you a million dollar check, this rarely happens. In fact, most movies end up in popular marketplaces like Amazon and iTunes, and others. You must plan for this.”