Despite her best efforts to mislead him, including mistranslating people's conversation to tone down the content, Henry finds out that Maria has not just translated the book; she has re-written it completely, transforming it into a passionate sexy romance novel, which is why it is so popular.

In February 2021, it was announced that Sam Claflin and Verónica Echegui would star in the romantic comedy film Book of Love, with Analeine Cal y Mayor directing from a script by David Quantick.

[4] Principal photography took place from March to April 2021 in San Cristóbal de las Casas, Palenque and Tuxtla Gutiérrez, in the Mexican state of Chiapas, amid the COVID-19 pandemic.

[5][6][7] Filming was originally set to take place in the Canary Islands, Spain, but due to COVID-19 travel restrictions, Claflin and the British producers were unable to enter the country, so production relocated to Mexico.

The website's critics consensus reads, "The sweet promise of Book of Love's fun premise is left frustratingly unfulfilled, although it may be fluffy enough to tickle the fancies of undemanding rom-com fans.

"[14] Tomris Laffly of Variety stated, "While Analeine Cal y Mayor's amiable romp doesn't master the screwball language, it still worthily celebrates the art of sex and romance through a charming tale of opposites".

"[16] Gary Goldstein of the Los Angeles Times praised the performances of Claflin and Echegui and wrote, "Despite being often preposterous, the cross-cultural comedy Book of Love is an entertaining watch.

"[18] Natalia Winkelman of The New York Times criticised Claflin's performance and commented that "there is something tired and clichéd about a Mexican woman's being deputed to help a British fuddy-duddy embrace narrative spice.