Pre Production - Billy Wilder Tips On Writing a Good Screenplay

http://www.openculture.com/2013/08/10-tips-from-billy-wilder-on-how-to-write-a-good-screenplay.html

Just like before, I'm going to fill this out as much as possible and answer the questions posed on these sites

1: The audience is fickle.

This is true, the audience changes their emotions all the time, so it's important to get them on the right side of what you want, so they're not confused later

2: Grab ’em by the throat and never let ’em go.

Develop an aim and don't let the audience go on it, be the driving machine you want to be to drive the script to success. 
 
3: Develop a clean line of action for your leading character.

Jimmy is essentially my main character. He has a clear aim, goal and issue. It's important I narrow this down so I don't confusee the audience.
 
4: Know where you’re going.

Knowing what I want to get out of the script is the most important part. I need to know where to take the story and if that will make it a better or worse script.

5: The more subtle and elegant you are in hiding your plot points, the better you are as a writer.

I'm still learning as a writer, but i'll try my best not to follow conventions to the T. I think i've done the best I can.

6: If you have a problem with the third act, the real problem is in the first act.

Not really had an issue with the third act, I like to think my story in its current form is tight.
 
7: A tip from Lubitsch: Let the audience add up two plus two. They’ll love you forever.

EXPOSITION! Let the audience figure it out. So important when making a decent script.

8: In doing voice-overs, be careful not to describe what the audience already sees. Add to what they’re seeing.

This is true. Although no voice overs I can think of are in effect, it's a good tip to know for the future. 
 
9: The event that occurs at the second act curtain triggers the end of the movie.

In essence. The revealing of billys mugger was a big part in progressing the story, the ending wrote itself.

10: The third act must build, build, build in tempo and action until the last event, and then — that’s it. Don’t hang around.

I like to think my climax is as good as it can be. It doesn't hang about. It happens. The payoff is there and you can see the change in all characters involved.

Another great site to use when thinking about screenplays.