As Fox’s bid for a stake in the animated market, ““Anastasia’’ has clearly borrowed elements of the Disney formula, like toy-friendly comic sidekicks. If you ignore the historical mangling (another Disney influence), there’s fun to be had. Hank Azaria is hilariously deadpan as the voice of Rasputin’s bat. Meg Ryan lends her trademark feistiness to Anastasia, and John Cusack makes Dimitri eminently likable as a sheepish hustler who redeems himself in love. ““Anastasia’’ relies on proven Broadway conventions: rousing show tunes, big dance numbers, a lilting minor-key ballad. The score’s unapologetic cheer is infectious. Kids over 5 will like it, and you’ll probably smile yourself (and feel a little silly for it).
