I wrote here about how storytelling is like running code on the brain, and how clichés are like commenting out your code (or NOP Sleds for the security types).
I was recently reminded of this when watching S05/E08 of Game of Thrones.
John is in the far north trying to convince some Wildlings of something, and he makes some sort of hopeful statement, to which a snarky Wildling responds,
Yeah, good luck with that.
Good luck with that? This is a cliché in 2015, and downright ridiculous coming from a fantasy-world barbarian.
When I heard her say it, I was instantly pulled out of the scene. I was thrust back into my living room, into a sofa, into the realization that I was watching a show.
It extracted me from the story.
Game of Thrones has great writing when it comes to content, and to dialog in general. They should have someone looking for overused and anachronous language as well.