I believed that the film "Home Alone" was actually called "Homer Lone" and that that was the name of Macaulay Culkins character.
A childhood belief about films

others believed things like this
- I thought Oklahoma was named after my Uncle Homer. (Pre-Simpsons)Anon
- i used to think a small man named homer lived in my grandmother's freezer and made ice. — ana
- I used to believe that an animated film meant that the film had live animals in it.— reverb
- I believed that the breed of dog called Boxer was called that because they could stand up and box.Anon
- I thought pretending I was sick to stay home from school was called cookie not hookie.— Jen
- Well I once believed that when someone was home alone, they'd walk around naked..Anon