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'Ice Age: Continental Drift' -- 2 stars

PG; 1:27 running time "Ice Age 4" separates the woolly mammoth Manny (Ray Romano) from his family, for a while, as the land masses creak and groan, though not as loudly as the script's jokes, especially the ones ending in the word "booger" or "puke." The saber-toothed tiger Diego (Denis Leary)...