Just finished my first real screenplay. I jumped around a lot. I had ideas for certain scenes and wrote them down. I built on them and then weaved everything together. When I was done I had a new idea that completely changed the story just with a few more lines added. Point is, it is never really done.

I think a month is about right for a first draft with a final draft being finished within three months. Though, I can see that having a writing can speed things up with the old "two heads are better than one" thing.

I did write 60pgs in four days once because I was on a deadline. The last fifteen pages or so turned out a little campy because my brain had gone to mush by then.

I would advise writing it however it feels best to you, and don't listen to what anyone else says.

Agreed, but it is always a good idea to try new methods and remove yourself from your comfort zone. I find input about others' processes refreshing and, on certain occasions, enlightening.

One thing that was completely ingrained in me in my Screenwriting class in college is to write in the proper format, everything else is secondary. Then if you want to write scenes out of order or whatever, it's easy to move them around like Scrabble tiles later.

I just started writing and I think I'm pretty good at it. I've written a couple of horror scripts. All my friends have read them and gave me really positive feedback, but they're friends and family.

How do you know if your stuff is good enough to show to people in showbiz?

Scripts
 

I would recommend doing some additional research into script writing. A very good source of knowledge would be Robert McKee's 'Story'.

There is where it all starts - writing a great script.:D

Woz
FUBAR Entertainment

Here's another question for all the writers here...

Do you work on 1 script at a time & finish it before starting a new one or do you have multiple projects all going at once?