One of the more challenging aspects of scriptwriting is how to describe what is happening between dialogue. How much should you include? What should be left for the actor to decide?
Once you have all the necessary description of the scene, you move on to action. You are still writing description, but you are creating pictures with movement in them – your characters and objects moving in their world. By creating movement you will also enable the reader to visualise the scene. GettingAchieving visualization in your reader to visualise will enable himthem to seewatch your movie playing in his head.
You aren't describing things, you are describing things happening. When we use our words to paint pictures, we are painting moving pictures – and that is interesting to a reader. Which means that you have a better chance of selling your script.
Check out 18 Tricks and traps to writing description. http://bit.ly/Ioauf