Toy Story 3 - 7/10 - A lot of this film (perhaps too much) depends on good will from the audience. If you liked the first two and are able to empathize with Woody, Buzz and Co., you'll probably enjoy this one on some level. However, I think the movie played too heavily on the sentimentality/emotion angle: there were a lot of funny bits (especially Buzz en Espanol) but the movie's awfully sad and dreary for a kid's movie, and it doesn't have enough of a payoff to make all this dreariness work. Plus the ending is interminable. It's enjoyable on some level, but I'm wondering how someone with no Toy Story experience would take it.
Excellent points, all, and I don't disagree, although I don't see, given all those caveats, how you could manage such a high score. I will add one other negative: there's fundamental dishonesty going on with the ending which--SPOILER--deals with Andy saying goodbye to his toys. The audience is entitled to some sentimentality over this as those who have followed the series are in effect themselves parting with the continuing characters from the three films. But the audience is waving adieu to characters; the toys never came alive to Andy, so he knows them only as inanimate objects. The filmmakers, I feel, try to pull a fast one by having the sentimentality of the audience imputed to Andy who, if he were really that worked up about toys at his college-bound age, would be a pathetic person. And sentimentality for its own sake is never sufficient justification for a work of "art" anyway.