Actual artists created a significant portion of the artwork displayed in the film. Anne Hathaway and production designer Amy Williams collaborated on sourcing the art. Williams mentioned, "We worked hard to make the art a focal point and ensure its authenticity."
A news article titled "Hayes and Solene: Will It Last?" is said to be from Horse & Hound, a legitimate equestrian publication. In the movie Coup de foudre à Notting Hill (1999), a character is mistakenly believed to be a reporter for Horse & Hound. Additionally, several sources have compared The Idea of You to Notting Hill.
Solène's office features a poster of pioneering abstract Swedish artist Hilma af Klint, whose paintings are among the first abstract works known in Western art history.
Anne Hathaway and Nicholas Galitzine are both big Arsenal fans, who play football in the English premier league. During an interview promoting this film, Nicholas checked his phone telling Anne that Arsenal had just scored a goal, Anne asked who had scored and was told that Trossard had scored and Anne said that she loved him. A few days later Leandro Trossard recorded a video for Anne and Nicholas saying how pleased he was that they were fans.
The watch Hayes wears is a TAG Heuer, Carrera Date, 39mm, brushed silver.