Here's a sample script I wrote fer a Ghostbusters comic I'm part of. Basic elements include a panel description which c'n be as detailed as ya want (meanin' th' artist will fill in th' blanks), character dialogue an' sound effects present after each description. As fer formattin' yer script, there are many different ways an' none exactly "right". It all boils down to yer preference. One way I do it is to increase th' margins on th' side so everythin' is condensed in th' center o' th' pages, then I center all dialogue while everythin' else is justified. I also break each page up into a specific number o' panels.
1-Night time over New York City. The full moon hangs over the dark shadowy forms of the buildings turning the sky into a brighter blue than usual. All you can see are the dots of lights all over the buildings.
2-Establishing shot of the firehouse.
3-Inside the main office, Peter leans back in his chair with his feet up on the desk. He holds the reciever of the phone between his ear and shoulder as he plays with a deck of cards in his hands. He has a big smile on his face.
Well, I look forward to seeing you too, Cherri. Tonight at 8 it is, then. Oh, and make sure you wear that short little number. Yeah, that's the one, you definitely know what I like.
4-Shown at an angle from behind Peter, Ray descends the stairs as Peter sits up and hangs up the phone.
'Till tonight, babe.
Personal calls on company time again, Dr. Venkman?
5-Peter leans back in his chair, putting his arms behind his head with a big, contented smile.
And when was the last time YOU had a date, Dr. Stantz?
1-His curiousity is rewarded by a shower of slime from above.
2-Angled from slightly behind Peter and to the side, Peter sits angrily dripping with slime with his fists clenched beside him. Above him is a radio controlled blimp with a bucket assembly attached, the bucket upside-down dripping out the last of it's slime contents. Ray is laughing his head off from the other side of the desk, while in the background Egon stands in a lab coat holding the remote control for the blimp looking mildly amused as Winston cracks up standing next to him.
Verrrrrrrrrry funny. I hope you boys can sleep with one eye open.