: Due to budget constraints, the BB pellet that hits Marv in the forehead was hand-animated by a Chicago artist for $600.
: The basement furnace was given a "menacing" presence using a real voice actor who recorded distorted, growling dialogue.
: To make Kevin’s battle plan look like it was drawn by a child, Macaulay Culkin (who is right-handed) drew it with his left hand.
: The film is a massive holiday tradition in Poland, where it has been broadcast on national television every December for years.
: During a rehearsal, Joe Pesci (Harry) actually bit Macaulay Culkin’s finger hard enough to break the skin, leaving Culkin with a permanent scar.
: Despite scenes set in Paris, the production never left Chicago; O’Hare International Airport doubled as the Parisian airport.
: The tarantula that crawls on Daniel Stern’s (Marv) face was real. Stern had to mimic a scream silently during the take to avoid startling the spider.
: The black-and-white film Kevin watches, Angels with Filthy Souls , is not real; it was created specifically for the movie using period-accurate techniques.
