What happens when I'm finished with my script?
Every script has lots of rewrites, edits and new ideas being put in it throughout it's entire journey from the pane to the screen. When a writer is finished with his script, he then takes it to some filmmakers and director, and they're going to work on it together as an independent film. The director is most likely going to want his or her influence on the material. Then when they're actually shooting on set, the financier of the independent film, whoever they got the money from, is probably going to want to say "why don't you put this in there?" or "Maybe there's a role for my sister". Everyone's going to have their sort of two cents heard on the script. When you're shooting in the day and an actress says "I want to try and take this line over here instead", or "Can I try this?", those things influence the life of the script, so it's very rare that a script goes word-for-word from the writers first vision to what's actually shot up on the screen. More so with studios as they're the ones who are able to really pull at things in the script and have their influence on the script. A studio film like Kindergarten Cop had something like twenty writers on it because they would just bring on board a specialty, a romance guy to doctor it up a little, an action guy who's going to doctor it up a little bit. But with an independent film, it is as close as possible to the original writers' ideas, however in the actual movie-making process its going to have its twists and turns along the way.