Hollywood director Brian De Palma has lashed out at movies and TV shows that simplify complex crimes to attract a mainstream audience. The movie-maker's latest film, The Black Dahlia, follows two detectives investigating the real life murder of a 1940s actress. But he's fed up of being told the plot is 'too complicated' by cinema-goers who are accustomed to dumbed down television programmes. De Palma says, "If you want to see CSI, or Law And Order, they're on every night. It all fits in a neat bag, but to me procedural dramas are extremely boring."