Barry Norman presents a round-up of news, reviews, and interviews from the movie world. Reviews: Mahogany, starring Diana Ross as an ambitious fashion designer. Benji, a family film about a stray mongrel dog in Texas. Interview: Jack Nicholson comments on his role in the much-acclaimed film One Flew Over the Cuckoo's Nest. News: A report from Elstree Studios where Faye Dunaway and Malcolm McDowell have been making Voyage.