For some reason I used to think that all films were 90 minutes long and I remember having an argument with my room mate at college when he tried to convince me otherwise. I must have been at least 18 at the time! Having now seen several films which are shorter/longer than 90 minutes I've realise the error of my ways...
A childhood belief about films

others believed things like this
- I used to believe that old films were in black and white because thats how the world looked then.— JC
- I thought an Automatic car drove itself, like Herbie in the Disney films— Stano
- I thought live-action films were very, very well-drawn cartoons.Anon
- i used to belive that before films were coloured the whole world was black and white— daniel phelps
- I thought that a quarter hour was 25 minutes long, since a quarter was worth $0.25.— Crystal
- I used to believe that I would be paralysed if I sat on the floor for more than 20 minutes— bittergrass