For an instant I became very confused while watching the film, during the scene where a woman (probably his wife) visits Max in prison.  There is an obvious background noise that sounds like machine noises, much like the ones we hear in sci-fi movies. At first I thought it's some kind of glitch, but the second instance it's there again. So I was confused if the said scene, where the woman is berating Max, was meant to be comedic, thus, the weird background noise.  There were scenes that seem to drag on and the dialogue sometimes can distract the viewers.