[[caption-width-right:315:You know she's not the ''real'' Margaret Thatcher because she's ''smiling''.]]
->''"Watch out, looking back. Don't dig too deep--you don't know ''what'' you might find..."''
-->-- '''[[ImaginaryFriend Denis Thatcher's ghost]]'''

''The Iron Lady'' is a 2011 {{Biopic}} about UsefulNotes/MargaretThatcher starring Creator/MerylStreep in an Oscar-winning performance as the eponymous character. The film uses the framework of Thatcher's dementia to look back on the fragments of her life through her increasingly-feeble grip on reality and memory.

For the trope, click [[IronLady here.]]
* DeathGlare: Thatcher gives an undeserved one to her cabinet just because some ministers are beginning to disagree with her on certain policies
* IronLady: [[ShapedLikeItself You Don't Say]]! Even as an old senile woman, talking in private to her doctor, she gives detached speeches about how people spend too much time on their feelings instead of their thoughts.
* CloudCuckooLander: In her old age, Thatcher is getting a bit loopy. Mostly manifested through Denis (who, we should recall, is in ''Maggie's'' head).
* CommanderContrarian: Thatcher shoots down ''any'' criticism to her policies from her opponents and fellow Tories. It eventually backfires after her cabinet just can't take it any more.
* FatalFlaw: Well to her political career anyway, Maggie's flaw is that she believes herself to be right about everyone, and her ministers aren't. Eventually her cabinet gets fed up with this, which leads to her losing the Premiership
* FakeMemories: It's implied that what we're seeing is somewhat coloured through Maggie's rosy lenses.
* {{Foreshadowing}}: [[spoiler:In the scene where Denis proposes to Margaret, she exclaims, "I donʻt want to end life washing up a teacup!" Sheʻs doing exactly that in the movieʻs final scene.]]
** Roughly halfway, Geoffrey Howe warns Maggie that she shouldn't test her colleagues' loyalty too far. Eventually after a particularly vicious ReasonYouSuckSpeech, Howe resigns which sets off a chain of events that lead to Thatcher's resignation as Prime Minister rather than be humiliated by losing a leadership election.
* GhostMemory: Denis.
* HistoricalHeroUpgrade: The damage Thatcher did to industrial communities is skated over, with the protesters being shown in a fairly unsympathetic light, whilst Michael Foot is supposedly a buffoon. The film, regardless of artistic quality, is shameless hagiography from beginning to end.
* ImaginaryFriend: In the present-day segments, Thatcher is accompanied by the illusory figure of her late husband. Jim Broadbent is clearly having the time of his life playing Denis.
* ImportantHaircut: As part of Margaret's New Look.
* NeverTrustATrailer: The fact that Thatcher even ''has'' dementia isn't even mentioned, despite being one of the film's most central themes.
* RantInducingSlight: After some ministers tell Maggie that she should not go forward with her "Community Charge" because many people believe it's unfair, Thatcher gives a rather malicious ReasonYouSuckSpeech to her ''entire'' cabinet, [[ArsonMurderAndJaywalking calling them cowards for not wanting to put up a fight and traitors for willing to make compromises with the European Union, and agreeing with French economic theories.]]
* SelectiveMemory: Maggie's are definitely slanted in her favor.
* UndyingLoyalty: Averted. Howe warns Maggie that she must not test the loyalty of her colleagues too far. Maggie doesn't listen and eventually her cabinet turns on her after being humiliated and having their concerns and opinions shut down once too often.
* UnreliableNarrator: There are hints that the flashbacks are an example of this--the film (i.e. Thatcher) conveniently glosses over the negative aspects of her rule. And also, young Denis is a Hollywood heartthrob.
* TheUnseen: Mark Thatcher.
* UsefulNotes/TheFalklandsWar: Exactly what it says on the tin.
* YouAreWhatYouHate: As a young MP, Maggie was frustrated that her opinions and concerns were always shot down by others.....so when she becomes Prime Minister she does the same not only to the Labour Opposition but also her own cabinet. It doesn't end well for her.