In October 2014, Pixar's former chief creative officer John Lasseter revealed at the Tokyo International Film Festival that the film would feature a tribute to Hayao Miyazaki's film The Castle of Cagliostro, in a form of an old Citroën 2CV.
Pada bulan Oktober 2014, pimpinan kreatif Pixar John Lasseter mengungkapkan di Festival Film Internasional Tokyo bahwa film ini akan menampilkan penghormatan kepada film Hayao Miyazaki, The Castle of Cagliostro, dalam bentuk Citroën 2CV tua.