COPYRIGHT ORDINANCE PART II—DIVISION I Section 20 2-36 Cap. 528 end of the calendar year in which it is first so made available. (5) Subsections (2) and (3) apply if the identity of any of those persons becomes known before the end of the period specified in subsection (4)(a) or (b). (6) For the purposes of subsection (4) making available to the public includes— (a) showing in public; (b) making available of copies of a work to the public within the meaning of section 26; or (c) being broadcast or included in a cable programme service, but in determining generally for the purposes of that subsection whether a film has been made available to the public no account is to be taken of any unauthorized act. (7) If in any case there is no person falling within subsection (2)(a) to (d) the above provisions do not apply and copyright expires at the end of the period of 50 years from the end of the calendar year in which the film was made. (8) For the purposes of this section the identity of any of the persons referred to in subsection (2)(a) to (d) is to be regarded as unknown if it is not possible for a person to ascertain his identity by reasonable inquiry; but if the identity of any such person is once known it shall not subsequently be regarded as unknown. [cf. 1988 c. 48 s. 13B U.K.] 20. Duration of copyright in broadcasts and cable programmes (1) The following provisions have effect with respect to the duration of copyright in a broadcast or cable programme. Last updated date 3.3.2014