Film about Margaret Thatcher's life, which is expected to star Meryl Streep, shows the former prime minister as a dementia-sufferer looking back at her life with sadness. Although the prospect of Meryl Streep playing Margaret Thatcher may have pleased some admirers of the Conservative former prime minister, her children have been horrified to discover more about the film. Mandrake hears that the screenplay of The Iron Lady depicts Baroness Thatcher as an elderly dementia-sufferer looking back on her career with sadness. She is shown talking to herself and unaware that her husband, Sir Denis Thatcher, has died. “Sir Mark and...