If you plan to watch this and -not- expect it to suck, you have brain damage.
Acting is wasted on mostly monotone lines, heavy breathing, and staring into the corners of the screen. Why Pitt was necessary is beyond me, Vince Vaughn could've performed this, a dead cat could act with the same intensity.
The story makes little sense, as the writer's were likely executed to save cash on those sick CGI visuals and sound effects.
Spare your time and just go to the gym or just watch something better, like YouTube's Ads