Equilibrium/Fridge

On the first viewing I actually found the acting laughably bad: for a world with no emotions way too many characters (Brandt, Dupont, Preston's kids) so obviously display them. Only on later viewings did I realize it was not a good, but foreshadowing: Preston is the only named character still on Prozium at the beginning of the movie.
The scene where Preston pistol whips a bunch of guys surrounding him isn't just to make him look badass: during training, gun kata is described as "treating the gun as a total weapon, each fluid position representing a maximum kill zone". This includes using the gun as a club, in case things come to that.
Gun kata relies on perfect emotional control. That is why DuPont engaged in Evil Gloating towards the end, and why they left Preston his guns; Take away Preston's sword, then take away his gun kata, and make him take the mooks on with nothing but his now useless guns.