Our own JohnnyCat has a whole series of grievance posts about movies in his blog The Litter Box. The latest is about some annoying television gimmicks that are incorporated into film, like the "switch-off":
This is that annoying behavior that hack script characters engage in, wherein they tune in to some disaster being played out on live television. “Turn on channel 2! You gotta see this!” And after a brief description of a horrible incident, or perhaps even a surprise announcement from a rival character, someone grabs the remote and switches the TV off. As if there’s no inherent interest in that story anymore. Nobody does this, ever.