Throw It In!: Literally with the scene where Adam pulls out a giant peppermint out of his pocket and it lands on a car. One of the toddler twin actors pulled out a piece of candy from his pocket and tossed it aside, so they decided to incorporate it into the movie.
The only installment of the Honey, I Shrunk the Kids franchise not to have the word "shrunk" in the title.
Also the only installment of the Honey, I Shrunk the Kids franchise to feature all five Szalinskis: Wayne, Diane, Amy, Nick, and Adam.
Shortly before the film's release; Disney was sued by Paul Alter, best known as a frequent director for Mark Goodson Productions; specifically his work as the original director during the initial run of Family Feud during the 1970s and early 1980s and having been at that time the director on The Price Is Right from 1986 until 2000. Alter had submitted a similar script titled "Now, That's a Baby" to Disney in 1980 based upon watching his granddaughter toppled a set of blocks, with Alter's script having gotten an unspecified treatment, though nothing further came of the Alter submission. Alter's lawsuit alleged the film's plot (story by Garry Gordlow; who worked on the screenplay version alongside Thorn Eberhardt and Peter Elbling) was similar in several places to Alter's script. A jury eventually ruled in Alter's favor in 1993; with Disney having to pay $300,000 in damages.