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 Fourth Date Marriage, Love at First Sight, or even Strangled by the Red String that are not an issue in the original. Adaptation Displacement will exacerbate such complaints, even extending to Die for Our Ship. Not to be confused with Promoted to Love Interest, as the romance was present in the original, but its speed is just altered.
- This happens in Scott Pilgrim vs. The World (comic book to 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 The Phantom of the Opera (book to musical): The two may be Victorious Childhood Friends 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 Les Misérables (book to musical): Marius seeming to fall in Love at First Sight with Cosette in the musical has strongly contributed to making Marius/Eponine the Fan-Preferred Couple.
- 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 The Lord of the Rings (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 Hooked Up Afterwards (which most people won't even notice unless they've read the books already). The extended version improves things a bit, but not much.
- Lupin and Tonks in Harry Potter (book to film): In the book, their relationship is an (admittedly mostly off-screen) subplot, involving much angst about the possibility of Lupin passing on his lycantropy. In the films, there's just a throwaway mention that they are now married and later a throwaway mention of Lupin having a son.
- The 1980 film version of Flash Gordon has Dale and Flash falling for each other at an alarming rate. Lampshaded by SF Debris who questioned the strength of a relationship built up over one long afternoon.
- In the 2013 film adaptation of The Great Gatsby, Nick and Jordan's relationship is significantly downplayed. In the book, they are a couple until Nick breaks it off after Gatsby's death; in the movie, they flirt but never officially date, and the last time we see them together is when Nick refuses her invitation to dinner at Tom and Daisy's after the incident with Myrtle.
- One of the most famous examples is Shakespeare's Romeo and Juliet (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.
- 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 Anthony and Johanna's characters; she is looking for a way out of a bad situation and he's her best option, while Anthony is naive and idealistic enough about love to think that Rescue Romances work in the real world. However, even this is significantly trimmed down in the 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 Stalker with a Crush territory.