Everybody else has already said it and probably more eloquently, but: if you have not already done so, go see WALL-E as quickly as humanly possible. It is probably the best picture Pixar have ever made.
Let me repeat that to make sure it sinks in: this is the best movie that Pixar Studios have ever made.
(If there is a creative force on this planet equivalent to Shakespeare in his prime, folks, it’s working for Pixar.)
EDIT TO ADD: And since a couple of people have asked me now: yes, it’s also a fantastic children’s movie. I always try to catch a matinee of any Pixar release because I like to see how the intended market takes it, and A) my theatre was crammed and B) the kids around me were goggling, enraptured, completely and absolutely lost in the story.
People forget that storytelling without using words is exponentially more difficult than simple dialogue, and vast chunks of this movie are completely dialogue-less, which just makes the creative achievement here all the greater; this isn’t just Pixar topping their previous works (which already set the bar for excellence in animation and in movies in general), this is Pixar topping themselves after they intentionally handicapped themselves. It’s utterly unbelievable how perfect their achievement is.
Also, the short (“Presto”) is ludicrously good.