In the popular 2013 movie Olympus Has Fallen, a murderously efficient Secret Service agent played by Gerard Butler single-handedly defeats a North Korean assault team which has captured the White House and taken the president hostage.
That was by no means the sole offering in the genre that year. White House Down, starring Channing Tatum and Jamie Foxx, followed a similar theme.
Going further back, Michael Douglas and Keifer Sutherland slugged it out in the 2006 caper Sentinel, while the 1993 movie In the Line of Fire had an ageing Clint Eastwood playing a haggard but determined agent on the presidential security detail.
