Despite the technical calamities, the spine of Horrible Bosses still flexes through. The actors’ chemistry, the script’s gleeful nastiness, and the absurd escalation of the plot remain recognizable; when the image holds and the sound is whole, the film’s nastily satisfying humor cuts through. There are flashes — a well-delivered line, a perfectly timed pratfall — that remind you why the movie worked in the first place. Those moments, though, are buried under obstruction.