After her homecoming celebrating her returning to a normal size she notices that her wedding ring is now too tight while her foot is splitting her shoe open, suggesting she might still be growing.
Rick Baker, who plays Sydney the Gorilla in the film, was the first recipient of the Oscar for Best Make-Up for An American Werewolf in London when the category was first introduced in 1981.
Actor Dick Wilson plays a fussy supermarket manager - much like his famous Charmin tissue TV commercial character: Mr. Whipple.
According to Landis, on an episode of Shock Waves Podcast, he wanted a trailer in theaters "one year before Shrinking Woman comes out" featuring Alfred Hitchcock in silhouette.
The trailer would have Hitchcock speaking to the camera: "Good evening, work is underway here at Universal Studios in Hollywood on potentially the most important motion picture of all time - The Incredible Shrinking Woman starring Lily Tomlin."
Ebert observed that the movie was: "also funny in its visual approach, showing us a suburban world in which everything is done in hideously jolly colors and everybody, even the TV anchorman, wears peach blazers.
On November 4, 2009, an unmastered low-quality DVD release (manufactured on demand using DVD-R recordable media) in 16:9 anamorphic widescreen was offered under the Universal Vault Series banner.
Factory as a "Collector's Edition" Blu-ray on November 14, 2017, with an updated transfer, and includes interviews and a deleted scene with Edith Ann, a character also played by Tomlin.