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Few tonal shifts are as jarring as the evolution of the 1988 sci-fi comedy My Stepmother Is an Alien. What modern audiences remember as a neon-soaked, slapstick romp featuring Dan Aykroyd as a lovestruck physicist and Kim Basinger as a bombshell extraterrestrial actually began its life as a harrowing psychological thriller. The original vision for the project had nothing to do with fish-out-of-water gags or talking handbags; instead, it was a dark exploration of a broken home.
The film’s journey started with a script by screenwriter Jericho Stone titled They’re Coming. In Stone’s original draft, the alien stepmother was not a misunderstood visitor from the stars, but a terrifying metaphor for a child’s perception of an abusive newcomer.
During a 1989 interview with the Los Angeles Times, Stone revealed the sombre roots of his story, stating, “My original script was an allegory about child abuse. I realised I could tell the story as a fable, a fairy tale that would make it easier for kids to grasp the child abuse angle.” He intentionally designed the narrative to reach younger audiences without the heavy-handedness of a “disease-of-the-week” television movie, hoping to use the supernatural to mask a very real human horror.
Early drafts resembled a “horror film”
When Paramount Pictures first optioned the script in the early 1980s, the executives were reportedly unsettled by the grim nature of the material. Director Richard Benjamin, who eventually took the helm years later, recalled that those early versions “resembled a horror film.”
The studio eventually decided that the premise of an alien trying to pass as a human was inherently absurd and would be far more marketable as a broad comedy. Over years of development hell, the script was put through a comedic meat grinder by nearly a dozen writers, stripping away the trauma and replacing it with Kim Basinger learning to kiss by watching cartoons and eating car batteries for breakfast.
The paranormal pedigree of the cast and crew
Despite the shift to comedy, the production remained tethered to the strange and the supernatural through its lead actor. Aykroyd, a well-known devotee of ufology, brought a level of genuine sincerity to the role of Dr. Steve Mills that bordered on the obsessive.
Aykroyd reportedly treated the scientific jargon with more reverence than the script required, often acting as an unofficial consultant on the “reality” of extraterrestrial life. This mirrored the intensity of the original writer, Jericho Stone, who claimed his fascination with the script’s themes grew after a chance encounter with Orson Welles. According to Stone, Welles told him that his infamous 1938 War of the Worlds broadcast was actually “just a dress rehearsal” for a real invasion, a comment that fuelled Stone’s paranoid, original draft.
Even the before-they-were-famous casting adds a layer of fascination for modern cinephiles. A thirteen-year-old Alyson Hannigan made her major film debut as the daughter, Jessie, effectively playing the final girl role from the original horror-tinged script.
In a stroke of casting fate, her love interest in the film was played by Seth Green; the two would famously reunite a decade later as the iconic couple Willow and Oz on Buffy the Vampire Slayer.
While the final cut of the film was a box-office disappointment and a critical curiosity, it remains a bizarre artefact of Hollywood’s ability to take a story about the darkest human impulses and turn it into a PG-13 comedy about a man falling in love with a woman from another galaxy.
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