Here are some quick notes about your script and the format you put it in.
Let me preface this by saying there is no such thing as an industry standard when it comes to format. The script can look like anything, as long as the creative team can read, understand, and work from it.
That being said, here is an approximation of a format that the overwhelming bulk of us will use.
I’m going to talk about the elements of the Page Number, Panel Description, Dialogue, Sound Effects. That’s all the elements a script has.
Between every element, you’re going to put an entire line’s worth of space in order to separate them.
Finally, when you’re finished with a page of story and are moving on to the next page, put in a page break. Page 1 could feasibly take up three pages of script, but is only a single page of story. When you finish with Page 1 and are going on to Page 2, put in a page break. If you don’t know how to do a page break, go to the Help menu of your particular program to learn how to do it.
Preamble has been ambled-pre! Let’s get to it.
Page Number (here is where you’ll put the page number, and possibly the number of panels.)
Panel Description: Here is where you write the still image. If it is an establishing shot, make sure to answer as many of the following as you can—Who is in the panel, Where are they, What they are doing, When (the time of day) the actions are happening. Remember, if you write the word “and” when talking about actions, you’re writing a moving action and the panel cannot be drawn. All panels have to be numbered sequentially, per page. You start over again when you start a new page of story.)
(Also, be aware of camera angles. A lot of the time, a panel description can be written without a camera angle because of the way the action is being described. Sometimes, though, a camera angle is needed. We can talk about camera angles later. They aren’t difficult. Knowing when and where to use them can sometimes be a challenge.)
Dialogue: This is where your characters speak. Note that there aren’t any quotation marks. There are very specific times to use quotation marks in dialogue. Voice-over captions and when the character is quoting someone.
Dialogue: If the same person is speaking but you want them to speak in another balloon, do not just hit enter and keep typing. That new balloon needs a label. Do you need to put that the balloons are connected? No. Not unless you need them to be for a particular reason.
Dialogue: Generally, there are only three bits of dialogue in a panel. Someone talks, someone responds, the first person talks again. Don’t be too wordy. Words take up space, and the more words you use, the more art you cover.
(Finally, Dialogue, for all intents and purposes, isn’t just what’s spoken. It’s also the captions. It isn’t called Narration, it isn’t called Narrator, it isn’t called anything you can dream up besides Caption. You can make a notation if it’s someone talking during a voice-over, but it’s still called a Caption.)
SFX: Here’s where you’re putting your sound effects. These can be a challenge sometimes. They can also be funny. Read an issue of Skullkickers to see funny sound effects.
(Sound effects can also help you with your timing. You can do that by placing it between dialogue. Just place the sound effect in the order you want it to be read. So if Bart has three balloons of dialogue and you want the sound effect to go after the first balloon, you put it between the first and second balloons.)
Do you have to put a “continued” notice or an “end page” notice at the bottom of the pages of your script? No. The only thing you need to get in the habit of doing is putting in a heading with your name, contact info, the name of the script, and the page number & number of pages of the script, as well as putting in page breaks.
It’s down and dirty, but those are quick notes about how your script should look and be formatted.