As a child, I thought some cartoons were made with human actors and scenery and the film then was edited to give it a "cartoon" look.
A childhood belief about cartoons

others believed things like this
- I thought cartoons were real, I remember asking my mom why there were lines around the "actors" in a cartoon.— Steven Graziano
- I used to beleive that in order to rewind a film the actors would have to re-act the whole movie backwards. — movies backward
- As a child I used to think that actors really died in movies.— Jordi Comendador
- When I was a child I used to believe that there were two hands inside the TV making the cartoons move.Anon
- When a grown-up is shown as a child, it was actually them, and the film took 20+ years to produceAnon
- i USED To beleive that cartoons were real and i made them my imageniary friends!— Shaman Queen