This trope happens when an adaptation (usually a film or musical based on a book), due to medium constraints, has to compress the time a romance has to develop. This can lead to accusations of FourthDateMarriage, LoveAtFirstSight, or even StrangledByTheRedString that are not an issue in the original. AdaptationDisplacement will exacerbate such complaints, even extending to DieForOurShip.

Not to be confused with PromotedToLoveInterest, as the romance was present in the original, but its speed is just altered.

[[AC:{{Anime}} & {{Manga}}]]
* Shion's and Satoshi's friendship is condensed in the ''VisualNovel/HigurashiWhenTheyCry'' anime to the point where it seems like they talked around five times, Satoshi disappeared, and Shion became [[{{yandere}} obsessed]] with him. In the visual novel and manga adaptation they interact more.

* This happens in ''ComicBook/ScottPilgrim'' (comic book to [[Film/ScottPilgrimVsTheWorld film]]) with Scott and Ramona's relationship. Originally, their relationship built up over a year or so before the comic ended. In the movie, the same development had to be cut down to a few weeks.

* Raoul and Christine in ''Literature/ThePhantomOfTheOpera'' (book to musical): The two may be {{Victorious Childhood Friend}}s in both versions, but the two spend hardly any time together on-stage as adults, compared to the longer, more complex (read: painful) progress of their relationship in the novel.
* Marius and Cosette in ''Theatre/LesMiserables'' (book to musical): Marius seeming to fall in LoveAtFirstSight with Cosette in the musical has strongly contributed to making Marius/Eponine the FanPreferredCouple. Of course, in the book, it's not much better. Marius and Cosette meet each other's eye a few times, but don't say a word to each other; yet when Valjean moves to another part of town and stops frequenting the park where Cosette and Marius would catch sight of each other, Marius and Cosette ''both'' fell into depression, and Marius resorted to stalking and hiring people who knew the area to catch glimpses of Cosette again. At one point, he leaves a notebook filled with his musings on love for Cosette to read; they're clearly talking about her, and are generally expressing the sentiment that life isn't worth living without love -- ''and he still hasn't spoken to her yet, and doesn't even know her name.'' Not long after their first conversation together (perhaps ''days''), the two are saying they'll die if they don't get to see each other again.
* Éowyn and Faramir in ''Literature/TheLordOfTheRings'' (book to film): In the book, they get more page time than even Aragorn and Arwen, but in the movie, they're a one-scene HookedUpAfterwards (which most people won't even notice unless they've read the books already). The extended version improves things a bit, but not much.
* ''Film/HarryPotter'' (book to film):
** In the book, Lupin and Tonks's relationship is an (admittedly mostly off-screen) subplot, involving much angst about the possibility of Lupin passing on his lycantropy. In the films, they're already together by Christmas in the sixth film (not hooking up until the end of the book) and only implied to be married with a son by the seventh.
** Ginny and Dean's relationship starts at the end of the fifth book and continues for most of the sixth. They start off strong and grow steadily rocky until they split up. In the film their relationship is mentioned at the start but most of the angst is downplayed, with one scene where Hermione tells Harry that they've been fighting. It quietly disappears much earlier in the film.
** Harry and Ginny hook up in the sixth book and are able to have a relationship for about a month until he [[ItsNotYouItsMyEnemies breaks it off for her safety]]. In the film, while their attraction is as developed as in the book, they only share one kiss and don't become a couple - due to the climax of the book being moved to the same day as the kiss.
* The 1980 film version of ''Film/{{Flash Gordon|1980}}'' has Dale and Flash falling for each other at an alarming rate. Lampshaded by ''WebSite/SFDebris'' who questioned the strength of a relationship built up over one long afternoon.
* Inverted in the film adaptation of the ''Literature/RamonaQuimby'' series -- ''Film/RamonaAndBeezus''. While the relationship between Aunt Bea and Uncle Hobart was never mentioned in "Ramona Forever" until they suddenly came over to the Quimby's household announce their ''engagement'', the two had a lot more screen time together in the movie, and even includes a proposal scene.

* One of the most famous examples is Shakespeare's ''Theatre/RomeoAndJuliet'' (book to play), where the romance between the titular couple was compressed from happening over several months (the time given in earlier versions of the story) to a few days.
* ''[[Theatre/SweeneyToddTheDemonBarberOfFleetStreet Sweeney Todd]]'' (play to film). In the stage version, it's compressed enough, since they go from strangers to planning to elope in two songs together, but this is justified as it's in keeping with both [[WideEyedIdealist Anthony]] and [[TheOphelia Johanna's]] characters; she is looking for a way out of a [[WifeHusbandry bad situation]] and he's her best option, while Anthony is naive and idealistic enough about love to think that [[RescueRomance Rescue Romances]] work in the real world. However, even this is significantly trimmed down in the [[Film/SweeneyToddTheDemonBarberOfFleetStreet Tim Burton film,]] thanks to the fact that several of their songs together are cut. The result is that Anthony catches a glimpse of Johanna through a window ''once'' and then instantly devotes himself to her, pushing his relationship with her into StalkerWithACrush territory.