Continuity mistake: In the scene where Margaret Thatcher is teaching her daughter Carol to drive, you see Margaret's window partially open but just as they near-hit the cyclist, her window is down just enough for her to stick her hand out but in the next shot its back to being partially open.
The Iron Lady (2011)
1 continuity mistake
Directed by: Phyllida Lloyd
Starring: Meryl Streep, Jim Broadbent, Richard E. Grant, Alice da Cunha, Susan Brown
Other mistake: In the scene where Margaret is wearing a bright-blue dress and a woman is sewing a button onto it while about six men stand around and wait, the woman finishes sewing the button on, but keeps on going, even though it's fixed. The whole thing takes ten times longer than it should.
Margaret Thatcher: Watch your thoughts, for they become words. Watch your words, for they become actions. Watch your actions, for they become habits. Watch your habits, for they become your character. And watch your character, for it becomes your destiny. What we think, we become. My father always said that. And I think I am fine.