1984 comedy movie starring SteveMartin and Lily Tomlin, directed by Carl Reiner. The last of the four movies Martin and Reiner made together (the others were, in order, ''TheJerk'', ''Film/DeadMenDontWearPlaid'' and ''Film/TheManWithTwoBrains'').

The plot concerns dying millionairess Edwina Cutwater (Tomlin) who, having never had a real life, makes a deal with her stablemaid Terry (Victoria Tennant) to help the younger woman AscendToAHigherPlaneOfExistence, allowing Edwina to take over her body. However, the procedure is screwed up, causing Edwina's spirit to instead be passed into Roger Cobb (Martin), her recently-fired lawyer.
!!This show provides examples of:

* AscendToAHigherPlaneOfExistence: Terry claims to want to do this. [[spoiler: Actually, she's just a cynical GoldDigger exploiting what she thinks is Edwina's insanity to inherit her millions. Turns out that Edwina wasn't so loopy, though, to her horror.]]
* BeYourself: Roger actually hates being a lawyer, and would be much happier devoting himself to jazz music, but feels that he has to focus on his law career as a more stable option. The events of the movie [[spoiler: not to mention the fact that he gets fired]] convince him to focus on his music career instead.
* BunnyEarsLawyer: Roger brings his dog to work. Played with; this is probably because deep down he actually doesn't ''want'' to be a lawyer.
* DeadpanSnarker: Edwina, while in Roger's body.
-->'''Burton:''' ''(on having affairs with widows)'' I should get a dinner, not court.
-->'''Edwina:''' He should get a social disease.
* {{Determinator}}: "Cutwaters aren't quitters."
* [[spoiler: FemmeFatale: Terry]]
* FreudianExcuse: Edwina's bitchiness can be explained by the fact that she's spent her life in a sick bed, combined with the fact that she's consequently been ignored, lonely and friendless her whole life as a result. To the extent that even a clown hired to entertain her for her birthday couldn't be bothered.
--> '''Roger''': [[ComicallyMissingThePoint That's a terrible clown!]]
* [[spoiler: GoldDigger: Terry]]
* GrandTheftMe: Edwina's occupation of Roger's body can be seen as a lighter, comedic version of this.
* HeadTiltinglyKinky: Terry, when Edwina!Roger starts scolding her.
* IllGirl: Edwina has been sick her whole life.
* TheImmodestOrgasm: Peggy demonstrates a fake one to Roger after breaking up with him.
-->'''Roger:''' [[CrowningMomentOfFunny Yeah, well I faked mine too!]]
* InnocentBystander: Roger wasn't even in the room when the soul transfer was taking place, but found himself involved owing to the misfortune of happening to be under the window that the soul jar transmitting Edwina's soul was falling out of.
* TheMirrorShowsYourTrueSelf: Or the self who happens to be co-occupying your body at that particular point in time, as the case may be.
* RichBitch: Edwina. She mellows over the course of the movie, however.
* RomanceOnTheSet: Steve Martin and Victoria Tennant kindled their love affair meeting in this film. They were later married from 1986-1994.
* ShooOutTheClowns: Of a sort; while it's still a comedy, it's more down-to-earth, naturalistic (in as much as a comedy about a woman's soul entering a man's body and taking over the left side of his body can be said to be down-to-earth and naturalistic, that is) and plot-based than the earlier Steve Martin-Carl Reiner collaborations, which were more zany, surreal and madcap. In particular, Martin's character is quite different from his characters in the earlier ones, being a fairly smart, down-to-earth and everyday guy who just happens to get stuck in an unusual situation rather than the over-the-top clownish buffoons typically played in the earlier movies.
* {{Slapstick}}: Although not so much slapstick violence occurs, a lot of humour is generated from Martin's physical performance of a man occupied by two souls, one belonging to a man and the other a woman who have control over the right and left sides of his body respectively, and the less than pleasant results this has for him.
* SoulJar: A bowl that can hold a soul, but only until someone touches it. It also stops working if it gets slightly dented.
* ThirdLawOfGenderBending: When Tomlin's character has to "pilot" Martin's body solo in a courtroom scene.