One of the least boring movies I've ever seen. With the un-cynical bigness of Jimmy Neutron & the meta tone of Rocky & Bullwinkle, it's a wonderfully buoyant big 'C' Cartoon about childish friendship & creativity. It relishes in joy & silliness, & even its gross-out humor feels sincere (it DOES have the word "Underpants" in the title). It has focused stakes, fantastically cartoony animation, LOL humor, & a strong (if predictable) message about the balance between fun & responsibility. Very few skid marks here.