lore, with a view to exploitation for profit-making purposes shall be subject to prior authorization by the body referred to in Article 6S, against payment of a fee of which the amount shall be fixed in accordance with the usual practice in each of the categories of creation involved. The revenue from such fees shall be administered by the body referred to in Article 68 and shall be used for cultural and social purposes of benefit to Congolese authors. or is unable to complete it due to circumstances beyond his control, he shall not be entitled to object to the use of the part of his contribution already in existence for the purpose of completing the work. Unless otherwise agreed, the co-authors of a cinematographic work may dispose freely of their personal contributions with a view to their exploitation in a different field, provided that this does not prejudice the exploitation of the work to which they have contributed. Article 19. Article 18 shall not apply where works of national folklore are used by a public agency for non-profit-making purposes. However, such public agency shall be required to make a declaration to the body referred to in Article 68. Article 26. Prior to undertaking the production of a work, the producer shall be required to conclude written contracts with all those persons whose works are to be used in the production: Article 20. Copies of works of national folklore and copies of translations, arrangements or other transformations of such works, manufactured abroad without authorization from the body referred to in Article 68, shall be neither imported nor distributed. CHAPTER 4 Cinematographic Works Article 21. In the case of a cinematographic work, the rights shall belong originally to the intellectual creators of the work. Unless otherwise proved, the authors of a cinematographic work made jointly shall be the authors of the screenplay, of the adaptation, of the spoken text, of the musical compositions, with or without words, created for the making of the work, and the director of the work. Where a cinematographic work is based on a pre-existing protected work, the author of the original work shall be assimilated to the authors of the new work. Article 22. The natural or legal person who takes the initiative and responsibility for making the work shall be deemed to be the producer of a cinematographic work. Article 23. The natural person who assumes the direction of a cinematographic work and the arListic responsibility for its transformation into pictures and sound, for the cutting and the final editing shall be deemed to be the director of the cinematographic work. Article 24. A cinematographic work shall be deemed to have been completed once the first master print has been established by common accord between the director and the producer. Article 25. If one of the co-authors refuses [0 complete his contribution to a cinematographic work, (i) the author of the screenplay, (ii) the author of the adaptation, (iii) the author of the musical compositions, with or without words, specially made for the work, (iv) the director, (v) the author of the spoken text. Unless otherwise agreed, the written contracts concluded with the intellectual creators of the work shall imply, to the benefit of the producer and for a limited period of which the term shall be laid down in the contract, a presumption of assignment of the necessary rights for a cinematographic exploitation of the work, but excluding any other rights. The presumption provided for above shall not apply to preexisting works used in the making of the work nor to musical works, whether pre-existing or not, with or without words. Article 27. In the case of a radio or television work, the rights shall belong originally to the intellectual creators of the work. TITLE III Authors' Rights CHAPTER I Economic Rights Article 28. Subject to Articles 33 to 36, the author of a protected work shall have the exclusive right to cia or to authorize the doing of any of the following acts: reproduction of the work in any material form whatsoever, including that of cinematograph films or of phonograms, by any means enabling it to be communicated to the public: