Kill Switch (2008)
'His rules. His way. No exceptions.'

Kill Switch is actually written by Steven Seagal and also features him as a "Memphis police detective [who] deals with the traumatic childhood memory of his brother's murder by devoting hislife to hunting down serial killers." Just in case that wasn't enough Seagal's cop girlfriend is killed in this movie. Killed by serial killers, not terrorists, but that's a minor qualm. The original name for this movie was A Higher Form of Learning which pretty much destroyed the title rule, however to much joy it was changed to Kill Switch which fits the two word rule perfectly (assuming it is the switch which does the killing). The cover is a classic, with Seagal holding a gun and his face taking up most of the space. No blue tint or explosion, but we can't have everything I guess.