http://www.3stepads.com/572280/film-scheduling-software
Get your hands on this film scheduling software that includes talent release forms, location contracts, call sheets and handles Storyboards for $50. It is a mini starter kit for “no budget film making”. Oh yes and let’s not forget that it comes with screenwriting software too. If you are going pro then you will want a copy of Final Draft, but until then you can use the script formatting software that comes with the package.
Final Draft is only necessary if you are submitting scripts to Hollywood like production houses because it is the most widely used screenwriting software on the planet. If someone buys your script they will most likely want a copy they can use with Final Draft. You know, so they can edit it into something unrecognizable but ultimately more marketable (LOL).
All the other big names in movie scheduling software cost big bucks, Movie Magic Scheduler is a hurting $499. Gorilla software is $449, and Sunfrog is $180. Script writing software like Final Draft is $176. You can quickly spend yourself into oblivion. So obviously the No Budget Film Making software is a fine deal at $50 because you get it all.
As for writing a screenplay check out Philip Gladwin and David Trottiers the Screenwriters Bible as these are some of the best screenwriting books around. Both of these cover writing and selling a script.