“A journey of a 1000 miles begins with a single step!”
Keep in mind financial feasibility in regards to every aspect of the filmmaking process. Money’s money, and that’s what we’re trying to avoid spending! This is particularly true for the screenplay itself as it does serve as the blueprint for the entire film. I know it’s easy to get carried away in the world of our imaginations, especially when writing. So, try and get creative by keeping things simple. Keep your locations minimal and free. I recommend no more then one or two primary locations. Limit your main characters to 2 or 3 actors. Keep your story character driven, don’t try and get all crazy with things you know you can’t afford and won’t be able to pull off, (explosions, car chases, special effects, etc.) instead think outside of the box, this is where some of the best ideas usually come from anyway.
Check out Writing Character For Film and Television – A Film Courage Screenwriting Series for a wonderful breakdown on screenwriting.