Q Is for Quack (2012)

The actual filmmakers, playing themselves, are upset over having gotten the letter Q for their segment and, whilst struggling for ideas, decide to make theirs the only segment of the film to feature an actual on-screen death. Adam and Simon, along with their cameraman Juan Carlos, go out to shoot an actual living duck on film (since "nobody gives a shit about animals"). Adam and Simon's guns suddenly jam and then unexpectedly go off, killing the pair. Juan Carlos runs away, leaving the still-living duck in the cage to watch the strange scene.