AN ACT ESTABLISHING THE MANDATORY CONTRIBUTION TO THE NATIONAL ENDOWMENT FUND FOR CULTURE AND ARTS BY PRIVATE ENTITIES ENGAGING THE SERVICES OF FOREIGN PERSONALITIES AS ENDORSERS, AMENDING FOR THE PURPOSE REPUBLIC ACT NO. 7356 ENTITLED, "AN ACT CREATING THE NATIONAL COMMISSION FOR CULTURE AND THE ARTS, ESTABLISHING THE NATIONAL ENDOWMENT FUND FOR CULTURE AND THE ARTS, AND FOR OTHER PURPOSES"