“Old Man” (* out of four) was an excruciating bore about a lost hiker (Marc Senter) who stumbles onto a house in the middle of the woods and finds an erratic old man (Stephen Lang) who takes him in but the two find a bond in kinship and camaderie even as they both try to turn the tables on one another. Imagine Lang’s other feature “Don’t Breathe” as a two-character chamber piece and you have an idea of what to expect about the static snooze proceedings here. Lang remains an underrated character actor but “Don’t Watch” would be a better title for this timewaster.