For those who thought the last Bruce Willis movie was a little light on the casualty list, “Olympus Has Fallen” arrives toting the biggest body count since “Die Hard II.”

Bystanders and tourists, soldiers, cops and Secret Service agents fall by the score in a movie about the unthinkable – a terrorist ground assault on Washington, D.C. (Hollywood is providing two such “unthinkable” assaults this year, with “White House Down” due out this summer.)

This is “Die Hard in the White House,” with Gerard Butler manfully manning up as Mike Banning, the lone Secret Service Agent survivor after terrorists take over the White House and seize the president and most of the cabinet.