NEW YORK -- A tale of new-friend stalkerdom so extreme it makes "The Cable Guy" look tame, "Dinner for Schmucks" mocks its central buffoon as mercilessly as the soulless execs it would scold for doing the same thing. Though not as guffaw-rich as previous efforts by the talents involved, it comes close enough to the mark to please their fans, spelling strong boxoffice appeal if not comic edge.