Angela Lansbury contributed to animated films.
Angela Lansbury . Although largely seen as a B-list star during this period , her appearance in the film The Manchurian Candidate ( 1962 ) received widespread acclaim and is cited as being one of her finest performances . She also moved into voice work , thereby contributing to animated films such as Disney 's Beauty and the Beast ( 1991 ) . Beauty and the Beast (Disney song) . The film 's theme song , the Broadway-inspired ballad was first recorded by British-American actress Angela Lansbury in her role as the voice of the character Mrs. Potts , and essentially describes the relationship between its two main characters Belle and the Beast , specifically how the couple has learned to accept their differences and in turn change each other for the better .