Universal executives wanted Chris Pine's character to lose the beard, fearing audiences wouldn't recognize him or find him attractive. Director Joe Carnahan declined.
Shot in 21 days on a budget of $5 million.
In the scene where Karl with a K is helping Norman Reedus clean up what is presumably a dead hooker, Karl has a crossbow draped across his back; paying homage to Reedus's role on AMC's The Walking Dead (2010), in which his character primarily uses a crossbow to dispose of zombies.