A film school will cost a lot of money. If you want to be an Independent Producer, and you have the gumption to persevere, then simply get to work. A film school is best used by those seeking positions with various film companies. Having no experience at all, I went straight to producing and bypassing all the time consuming and money eating nonsense. Anyone can learn how to be a Producer without the need for school, unless of course if they have a very small IQ. In fact, I began my first film using nothing more than a smart phone, continuously graduating to better equipment and other needs. What's more, anyone wishing to learn how to become an Independent Producer can learn all they need to know at their public library, FOR FREE.
God bless you.