If you are not incorporated, you may still be able to obtain funds from these agencies and from individuals if you can find a non-profit organization that is willing to serve as a fiscal sponsor for your project.
Most people give money to arts projects for two reasons.
First, they like the artist's work, and second, they want to get a charitable deduction on their federal income taxes. That way the donor can be certain that their contribution will be tax-deductible to the full extent of the law. A fiscal sponsor is a tax-exempt corporation that agrees to receive and disburse the funds for your project. There are many organizations that offer this service. For instance, both Women Make Movies and Boston Film Video Foundation have programs for sponsoring film and video makers.