daveed at 2010-05-06 11:50:12:
Those occasional "forget the three-act structure" prescriptions drive me nuts. Because when writers do, you usually get movies like In American Splendor. Boyce declares that "You hope till it hurts that his relationship will work out." No frikken way; I was hoping it would end.
A film is a tightly controlled and guided experience that operates on a time limit. It has to tell the audience what they see/hear as well as invite continual audience participation (emotional investment).
Therefore narrative form in film is essential, unlike in a play where characters (literally) come to life and let the audience respond to and pick up on subtleties of performance.
Moreover, if you're trying to sell a screenplay w/out a clearly defined structure, forget it. Try reading some structureless, or poorly structured, screenplays to see what I mean.