Sylvia Breamer and Robert Gordon appear at the Hongkong Theatre today and Monday in their second Blackton production for distribution by Pathe. It is 'Dawn,' a photo-dramatisation of the novel of the same name by Eleanor H. Porter, author of 'Pollyanna,' 'The Road to Understanding,' 'Oh, Money, Money!' 'The Tangled Threads,' and many others. The cast is a large and capable one, including Harry Davenport, Flora Finch, James Furey, Fanny Rice, Gus Alexander, Eddie Dunn, Gladys Valerie, and Margaret Barry.