It all depends. Are you an experienced professional film maker? If you are, you can't have permission. If you are a student, and want to do a project for use in school only, and won't charge money to see it, or do much of anything with it outside of a school application... you might get permission. If you are a stalking horse for a major studio, and probably not even named Jon Feldman, you may purchase an option for lots of money.