screen play elementes

All jokeing about screen play writers a side (be leave me there are a lot of jokes) writing a good screen play is an extremely hard task, and I noticed as I was reading that most of the things they told you not to do were things I hated when movies do. so you know the advice you were given is relevant and not something they just made up as they went. (in other words they did the exact opposite of what I do).
First off try to have a coherent story that doesn't make to many side bars and stays on topic (only exception is any thing written by Seth McFarland)and attempt to make the story seem as real as possible, like it could happen but you know it won't. Next is having the right kind of opening but be sure the opening fits the kind of movie the screen play is about. (in other words don't have a long intro to an action movie or a short one for a thriller). Lastly have a bigger all over message about something the audience can take home and use in their own life.
I personally I'm not the kind of person who likes to watch those kind of movies that have an ending that makes you think anything but "wow that explosion was awesome" but from what I can tell the rest of the population dose so I think it might be something to include just incase the explosions aren't enough. Although I have never written a screen play I think I could be pretty good at it, I do like the tips, they make sense and there stuff you wouldn't think of, in short tips good, explosions good, its all good.
final question "do we have to write screen plays next year?"