Intellectual Property Code
Section 200. Sale or Lease of Work. - In every sale or lease of an original work of painting or sculpture or of the original manuscript of a writer or composer, subsequent to the first disposition thereof by the author, the author or his heirs shall have an inalienable right to participate in the gross proceeds of the sale or lease to the extent of five percent (5%). This right shall exist during the lifetime of the author and for fifty (50) years after his death. (Sec. 31, P.D. No. 49)