[4] Natalie is an architect with a strong hatred for romantic comedies, stemmed from her negative mother who told her at an early age that girls like them cannot find love, and exacerbated by her low self-esteem and dating difficulties.

Natalie points out the clichés, their lack of diversity, always a gay best friend who has no life, voiceover train of thought of the protagonist and slow-motion segments.

One day Natalie, naively believing a guy is hitting on her, is knocked unconscious during an attempted mugging in the subway and finds herself trapped in the stereotypical romantic comedies she has come to despise.

Desperate to return to her reality, Natalie deduces that in the tradition of romantic comedies, she can only leave by finding true love.

Realizing that she has been in a romantic comedy the entire time, Natalie and the rest of the characters proceed to engage in a rendition of "Express Yourself".

On May 23, 2016, it was reported that Rebel Wilson would star as Natalie in an untitled romantic comedy film by New Line Cinema, from an original script by Erin Cardillo and rewrite by Dana Fox and Katie Silberman, while producers would be Todd Garner, Grant Scharbo, and Gina Matthews.

On May 10, Adam DeVine, who had previously co-starred with Wilson in the first two Pitch Perfect movies, and Liam Hemsworth were cast in the film to play love interests in Natalie's life.

In the United States and Canada, Isn't It Romantic was released alongside Happy Death Day 2U, and was projected to gross around $22 million from 3,300 theaters in its six-day opening weekend.

The website's critical consensus reads: "It follows as many genre conventions as it mocks, but Isn't It Romantic is a feel-good rom-com with some satirical bite – and a star well-suited for both.

[14][18] Australian publication QNews reviewed the film positively, with Peter Gray saying it was "one of the better example[s] of the genre, and it helps that its cast are all wholly capable of both playing to and against the stereotypes.