The search for the actress to portray Amber, a beauty who uses men to make her fortune in 17th century England, was modeled on the extensive process that led to the casting of Vivien Leigh as Scarlett O'Hara. Production demanded a lot from Darnell. She was again put on a diet and was assigned to a voice coach to learn how to speak with an English accent. In addition, she spent hours in fittings for costume changes. Darnell was certain that "Forever Amber" would be her ticket to stardom, and she told reporters: