The movie was about these people who live in a controlled world and are told nothing about the real world. They find out about the real world and try to escape. I think it was a type of underground electronically controlled world but I'm not quite sure... I don't remember much more but I would like to see it again. Please help if you can! :-)

Could be this one maybe?

THX 1138 - Wikipedia, the free encyclopedia

http://www.imdb.com/title/tt0066434/plotsummary

IMDb Video: The Island I hope this is the one you are talking about, good luck.

That does sound like the Island but wasn't that long ago!

Maby "Logan's Run"

Logan's Run (1976) - Plot Summary

It is THX 1138, thank you! :-)