@JulienEd --look at the schools that interest you and see what the application requires. You’ll be surprised to see that some great schools do not require a creative portfolio while some do. If you are interested in some film schools that do require a creative portfolio then going to a summer college film program is a great way to make something for your portfolio. Some of the programs–like UNCSA, Sarah Lawrence, etc–specifically gear their programs toward students making films for that college application.