Trivia: In "All I Want for Christmas" (1991), Hallie [Thora Birch] told her dad that Pluto is her "favorite planet." Pluto was reclassified or re-defined as a "dwarf planet" (now one of five) by the International Astronomical Union (IAU) in 2006. Many people were - and still are - unhappy about the "demotion" of what used to be the ninth planet and previously known as the smallest planet. Compared to one Earth year to revolve around the sun, Pluto takes 248 (Earth) years. (00:56:58)
Trivia: Ornella Muti plays Marisa Tomei's mother in the film, even though in real life she's only nine years older than Tomei.
Trivia: One of fictitious Texas State University's (TSU) opponents is Southwest Texas Bobcats (SWT), which was a real school. In 2003, SWT changed their name to Texas State University at San Marcos (they kept the Bobcat nickname). Eventually, when the other schools in the Texas State University System didn't change their names, "at San Marcos" was dropped and they are known just as Texas State University (TSU).
Trivia: This film's plot (ret-conning in an extra-terrestrial origin for the immortals) was so notoriously hated among fans of the original film, it was completely disregarded in subsequent sequels, and an alternate cut of this film (removing all alien references) was later released to appease fans.
Trivia: The first feature film for future megastar Leonardo DiCaprio.
Trivia: Harrison Ford almost turned down the role of Henry Turner because the character was a trial lawyer and feared being typecast as he had already played one in Presumed Innocent (1990). He changed his mind when he found out that Henry would only be serving as a lawyer in the first 10 minutes of the movie.
Trivia: John Candy and Emma Samms actually did dance together in the party scene.