If I copied a business partner's design in line art and put it in a patent application somewhat related to the business partner's business it would be OK? I think not.
If you were patenting a TV and in your patent's example diagram, the TV showed Mad Men playing on it, would that be OK? I don't know if it would or not, but it sounds like they're trying to patent the TV, not Mad Men.
Since short fragments are allowed as fair use, one frame from a movie should be ok too. Whether you can copy a wireframe design of an interface under fair use is an interesting question though...