Peter Firth the film adaptation of "Equus". The film was only a moderate box-office success, but earned Firth a nomination for the Academy Award for Best Supporting Actor and a Golden Globe award in the same category. Further film work quickly followed, most notably Roman Polanski's "Tess" (1979). In May 1981, he appeared on Broadway again in Peter Shaffer's "Amadeus" as Wolfgang Amadeus Mozart, replacing Tim Curry. Shaffer had offered him the role in the original London production, but he was unavailable due to film commitments. Other film work has included roles in "Diamonds on Wheels" (1973); "When You Comin' Back, Red
Anthony Shaffer (writer) than any bequest in Shaffer's will (which had been changed in 1999). He co-wrote three detective novels with his playwright brother Peter Shaffer under the pseudonym "Peter Antony". Anthony Shaffer (writer) Anthony Joshua Shaffer (15 May 19266 November 2001) was an English playwright, screenwriter, novelist, barrister and advertising executive. Shaffer was born to a Jewish family in Liverpool, the son of Reka (née Fredman) and Jack Shaffer. He was the identical twin brother of writer and dramatist Peter Shaffer, and they had another brother, Brian. Shaffer was educated at The Hall School, Hampstead, a boys' prep school and St. Paul's