3.  It shall be unlawful for a distributor to require, as a condition of the supply of a film to an exhibitor for exhibition in a cinema on or after the day of general release of that film, that the exhibitor should exhibit the film for a period longer than—

(a) in the case of the exhibition of a film for a period commencing within six weeks of the day of general release of the film, two weeks; or

(b) in any other case, one week.