When there is a single story, the frame story is used for other purposes – chiefly to position the reader's attitude toward the tale. One common one is to draw attention to the narrator's unreliability. By explicitly making the narrator a character within the frame story, the writer distances him or herself from the narrator; she or he may also characterize the narrator to cast doubt on the narrator's truthfulness. In P. G. Wodehouse's stories of Mr Mulliner, Mulliner is made a fly fisherman in order to cast doubt on the outrageous stories he tells. The movie "Amadeus" is framed as a story an old Antonio Salieri tells to a young priest, because the movie is based more on stories Salieri told about Mozart than on historical fact.