Changeling is a true story. Not "based on a true story," but a true one--a claim that writer J. Michael Straczynski reportedly had to work closely with the studio's legal team to make, citing and authenticating every scene in this lengthy, Clint Eastwood-directed, Depression-era period piece. And while the true story is, in fact, remarkable, the other side of the coin is that Changeling's faithfulness causes most of its flaws: It drags at points, and its austere and formal tone sucks much of the blood out of the drama. by Marjorie Skinner