Wall E is about the earth in the future. It has been abandoned due to us not taking care of it. There are mounds of garbage the size of skyscrapers. Wall-E is a garbage collecting robot that is there to clean up the mess. One day, Eve (another robot but one looking for life) shows up. Wall-E is in love. Without giving too much away, they go back to the ship where the humans are now living to let them know it is time to come home (aff).
Now, half of the movie has no dialogue, and it is still that good. They are definitely able to still get their point across, and we get to watch Wall-E and Eve fall in love. It really makes you think about becoming more enviromentally friendly and making sure that there is even an Earth to hand down to our kids and grandkids. Madison has been talking like Wall-E for a week now, so it is hit with the 4 year old year too!