"Joe Pesci deliberately avoided Macaulay Culkin on-set, because he wanted Culkin to think he was mean."
"Macaulay Culkin’s stunt double was a very short 30-year-old man."
"The scene in which Kevin is buying a toothbrush was the first scene that was shot for the movie."
"During his barefoot scenes, Daniel Stern wore rubber feet."
"The film coined a new phrase within Hollywood: Home Aloned, used to describe how other films suffered at the box office because of its success. Executives would say “My picture did 40, but it would have don 50 if it hadn’t been “Home Aloned.”"
"Angels with Filthy Souls, the gangster movie Kevin is seen watching, isn’t real. So don’t bother trying to find it. The sequel, Angels with Even Filthier Souls, featured in Home Alone 2 isn’t real either… sorry."
"Catherine O’Hara revealed in 2014 that Macaulay Culkin still calls her “Mom”."
"Director Chris Columbus would ask Joe Pesci to do his “How am I funny?” speech from Goodfellas (1990) on-set. In fact, Pesci was to have a similar scene with Daniel Stern, defensively questioning him about having an edge. This scene was deleted."
"Hilary Wolf, who plays Kevin’s older sister Megan, landed a few roles after Home Alone but would go on to compete in the 1996 and 2000 summer Olympics in Judo."
"The poster and video box image of Kevin with his hands on his face and screaming was improvised by Culkin. He had forgotten to pull his hands away as he screamed. This became the most famous shot of the movie."
"The shovel wielding neighbour, Old Man Marley wasn’t even part of the script, and was added in at the suggestion of director Chris Columbus."
"The pages on the Playboy Magazine Kevin looks through were taped together so young Macaulay Culkin wouldn’t see any nudity. The cover was from a July 1989 issue."
"The wax-and-plastic snow used in this movie was given to the Lyric Opera of Chicago when shooting finished. It has since been used in numerous opera productions."
"The movie originally had more scenes of the family in Paris, France, but test audiences wanted to get back to Kevin."
"Director Chris Columbus has storyboarded a dream sequence where the house comes to life and torments Kevin. Because of the expense, the scenes were ditched and only the angry furnace in the basement remained."
"Macaulay Culkin drew the map that his character uses to set up the traps."
"Little Neros Pizza is a play on the real-life Little Caesars. Nero was a Roman Caesar."
"The line “You guys give up, or are you thirsty for more?” was improvised."