The movie is loosely based on Shakespeare's "Much Ado About Nothing". Quotations from the play are embedded in the background as title cards and occasionally integrated into the dialogue.
While filming the scene where she pulls the spider out of Glen Powell's swimsuit, the trained huntsman spider they used actually bit Sydney Sweeney. The camera was rolling while this happened, which lead to the clip being posted online. The medical staff on set recorded the incident as "Sydney Sweeney (Cast Department) bitten by Spider, now Spiderwoman," though they were unaware of her involvement with Madame Web (2024).
The name of the shop where they get the wedding cake is Dogberry's. Dogberry was the name of the constable in the play "Much Ado About Nothing", on which this movie is based.
Early in the film, Halle (Hadley Robinson) says to Bea (Sydney Sweeney) that ever since their parents arrived in Australia, her mother thinks that she, herself, is Australian. Rachel Griffiths (who plays their mother) is actually from Melbourne, Australia.
Surpassed Roméo + Juliette (1996) as the highest-grossing Shakespeare adaptation (excluding the Lion King films, which were based on Hamlet).