Mercenary for Justice (2006)
'It's time to fight again.'

The original title of this movie used to be just 'Mercenary', which bent the one-word title rule with mercenary being a pretty threatening word. To my elation, however, they changed it to Mercenary for Justice, which not only fits the rule perfectly, but it's downright eerie that they would change it for a non-conforming title to a conforming one after this site's creation. Anyway, in this movie Seagal plays a mercenary (shocking, I know) who gets caught up in a mission which endangers the lives of people close to him. As if that wasn't enough, in order to save them he needs to break into some prison and break out the son of- you guessed it; a drug lord! They sure know how to shake things up. The poster, while tinted red instead of blue, makes up for that by having Seagal holding a gun not once, but twice. And just to make sure, the only other person on the poster is also holding a gun.