Complex sentence: Marianne Stone (23 August 1922--21 December 2009) was a British character actress who appeared in hundreds of films from the early 1940s to the late 1980s.
Split into simpler sentences: Marianne Stone (23 August 1922--21 December 2009) was a British character actress. She appeared in many films from the early 1940s to the late 1980s.