When I was young and wanted to watch movies that were a little more mature than I was - My father would tell me they were musicals and I wouldn't like them...
It wasn't until college that I found out Rocky, Flashdance, and Porky's were not musicals.
A childhood belief about films

others believed things like this
- I thought that psychological torture involved forcing people to watch really sad movies!— Elviessa
- When I was younger I thought MTV was an x-rated station because I thought M stood for Mature.— Aeris
- When I was younger, I wanted to marry Willie Nelson so I wouldn't have to change my name.— stacy
- I used to think that if you ate cat food you would die. I found out it wasn't true
— Bob#4 - I used to think actors in movies sometimes had to actually die to make the movies look real.— Dero
- When I was really young I used to think that dead bodies wouldn't start rotting until they were buried.— Katherine