Elliot Grove's weighty tome is on the reading list of most of the top film schools in America where it is considered about the very best all-encompassing book on filmmaking. Everything is discussed from script to finance to shooting to sales and distribution.
Blake Snyder's first trip to Raindance in November 2007 was a ground breaking and seminal class in screenwriting. His novel approach to strucuture and genre (his recently published second book is Save The Cat Goes To The Movies) is the freshest appraoch to structure and many who have read his book, swear by it's simplicity.
Dov's revolutionary 2 Day Film School was the first ever Raindance course way back in 1992. Love him or loathe him, his screaming bluesman like holler will either piss you off or get you moving to success.
Famously taken by Tarentino and a host of other now-successful filmmakers, his next 2-Day Film School class is in late 2008.