This was the first film shot with Arriscope anamorphic lenses, which were created for Arri by the German manufacturer Isco-Optic.
Body Snatchers is the third film adaptation of Jack Finney's novel, the first being Vampiros de Almas (1956), followed by the remake of the same name Invasores de Corpos (1978). A fourth adaptation was later made, Invasores (2007).
Warner Bros. originally scheduled the film for release in October 1992. They opted for the more comedic Inocente Mordida (1992) as their horror release that season, as it was felt that the glut of serious genre fare such as Hellraiser III: Inferno na Terra (1992), O Mistério de Candyman (1992), Dr. Giggles - Especialista em Óbitos (1992), and Drácula de Bram Stoker (1992) would overwhelm the film's potential. The release was moved around several times in 1993 before its unceremonious limited release came in January 1994.
Even though Marti and Jenn are supposed to be in high school, Gabrielle Anwar (Marti) was 23 years old when the movie came out and Christine Elise (Jenn) was 28.