Tekkonkinkreet is a landmark in the increasing cross-pollination between Japanese and American animation: Based on a manga by Taiyo Matsumoto, the film was made in Japan at Studio 4C, but directed by American Michael Arrias. The story unfolds in Treasure Town, a scabrous metropolitan slum so gritty it makes the viewer want to clean under his fingernails. Orphans White and Black share an existence at the fringes of an already marginalized subculture. White seems naive, if not learning disabled: at 11, he can't tie his shoes or dress himself. But he has an uncanny sixth sense about what's happening in Treasure Town. Older, streetwise Black looks after White and receives the emotional support he needs in return: they're two halves of a damaged whole. The arrival of a murderous yakuza boss who wants to demolish Treasure Town and build an amusement park draws Black and White into an escalating spiral of physical and emotional violence. Although the ending of Tekkonkinkreet feels needlessly obscure, it's a striking and often powerful film from a first-time director. (Contains violence, grotesque imagery, brief nudity, alcohol and tobacco use) --Charles Solomon,