Here's a cool Mashable article showing short films from the past that envisioned the future.
These are fun, but what's more meaningful is to realize how our current society easily eclipses their dreams. Not only is their technology too humble (automatic mixers are very exciting but are far surpassed by a microwave oven, for example), but more importantly, they didn't envision pivotal cultural changes, only technological ones. It's telling that the men of the 1950s thought their doting wives would be most excited by automatic kitchen appliances, and not, say, equal rights.
Here's one of the videos; go to the article to see them all.