The following links will provide you with commonly requested application forms for permits required for filming and other special park uses. Also, below you can find the park's compendium of regulations which is the official complilation of park rules enfored under Title 36 Code of Federal Regulations.
Compendium of Park Regulations
Application for Special Use Permit, 10-930
Application for Filming Permit (short) 10-931
Application for Filming Permit (long) 10-932