Whereas Toy Story was a children's film that adults could enjoy, the sequel pushes the big-kid humor up a notch. There's plenty of slapstick for the little ones to laugh at, but some jokes, like the wild Barbie beach party and the inspired Star Wars references, are purely for adult entertainment. And by confronting questions of self-worth -- can the monetary value of a toy kept pristine in its box equal the joy that toy would give to a child who plays with it? -- Pixar has created a film that's more provocative than its predecessor, making you want to find all the toys you ever threw away, invite them to a tea party, and tell them you're sorry.