While researching an article on adding production value to low-budget productions, I stumbled on a two-part article by a Hollywood action film scriptwriter who tells how planning your script properly can significantly reduce your production costs. While his promise of "big-Hollywood-picture-look-for-a-Movie-of-the-Week-budget" is still more money than many of us currently have access to, his hints on adding production value to scripts and milking the budget by planning ahead are something that even micro-budget independent filmmakers can benefit from.
The links below go into the articles section of his Web site, which seems to no longer be linked from his main page. You may want to make a local copy, lest the pages disappear in the future.
Blockbusters On A Budget (part 1) - by William C. Martell
Blockbusters On A Budget (part 2) - by William C. Martell