Adam Sandler's and Jennifer Aniston's third movie together. The first and second were Mia moglie per finta (2011) and Murder Mystery (2019).
Mélanie Laurent and Adam Sandler almost worked on Bastardi senza gloria (2009) together, since Sandler was Quentin Tarantino's first choice for the role of Sergeant Donny "The Bear Jew" Donowitz.
In fact, the film only lasts 79 minutes without credits.
The song playing in Delacroix's car is misidentified in the subtitles as a song by "Edith Piaf". In fact, it's "À la Française" by Lily Fayol.
Jennifer Aniston and Adam Sandler each took home $25 million from "Murder Mystery 2," and that wasn't enough. They also had producer fees and huge back-end income.