Thanks to software, screenwriting format has
become very easy. It is hard to imagine writing a script
without the software creating the structure. Imagine
before computers when script format had to be "typed"
and wasn't "automatic." That is, as you write,
the software is smart enough to figure out where to put your
text. However, at times, you still have to specify where
to put the text. This happens when dialogue is
accidentally added in action and vice versa. Still, with
software, this can easily be fixed. Imagine trying to fix
this in a typewriter!
The basic format is to have the title at the top
of the page, type in EXT for Exterior Scene or INT for interior
scene, then the location, and then the time of day.
Example: EXT. PARK-DAY. Also, direction
commands such as "DISSOLVE" are placed on the correct
location on the page. Furthermore, the name of the
character and the actual dialogue are centered. Thanks to software, this is done for
you. So you don't have to worry about format as long as
you buy the software.