She has written numerous screenplays but is most widely known for the film Stepmom, starring Julia Roberts and Susan Sarandon.
Gigi reportedly never joined a sorority at UCLA because she couldn't afford it as well as not being able to stand authority, especially from "smug rich kids."
Her Hollywood career began as an intern on a late-night talk show, for which she wrote sketches; she later became an assistant to producer Fred Silverman, who dissuaded her from attending law school by offering her a substantial raise and writing assignments for the television series In the Heat of the Night.
[3] Levangie’s screenplay for the Susan Sarandon-Julia Roberts film was claimed to be based on her experience dealing with husband Brian Grazer's children, Riley and Sage from his first marriage.
[4][5] However, the story of the film is virtually identical to the earlier 1995 TV movie The Other Woman written by Nancey Silvers, who later sued the studio which made Stepmom for copyright infringement.
The plot focuses on Molly Kagan (Debra Messing) who after years of marriage to a Hollywood film mogul is forced to redefine herself and her role in society when her husband leaves her for a younger woman.
Maneater, starring Sarah Chalke and based on Levangie’s New York Times bestseller, was seen by 2.9 million viewers and averaged a 2.1 among women 18 to 49.
[9] Soon after she would meet her future husband, Brian Grazer by accident at Orlando-Orsini on Pico Blvd at a lunch with a Playboy executive.