“DC Down” (** out of four) was a serviceable action thriller about an earthquake that decimates Washington, D.C. and traps the President (Sean Young) under pounds of rubble while the military frantically tries to rescue her and her staff and various other personnel (Eric Roberts, Jack Pearson, Geoff Meed, and others) have an agenda of their own. Reasonably well-made and fast moving enough but never escapes the mold of the routine. Young is slightly miscast as the leader of the free world. You might want to watch “Olympus Has Fallen” again instead.