So here's a weird thing. The new trailer for the next episode of Doctor Who, "In The Forest Of The Night," where London has gone feral and overgrown with jungle, has a brief shot of a double-decker bus which has an ad on the side.
The ad is a composite of a review quote from the movie Maze Runner, and a fan made poster of the new series of Doctor Who. It was made by a young guy from Canada, Logan Fulford.
What can this mean? Why is the ad there? Will it impact the plot in some strange meta-self-aware fourth-wall way? Probably not. But why did they use a fan poster? And why not contact Logan and ask permission?
All a bit weird, if you ask me.
(on a tangentially related footnote, I knew to look for this after listening to this podcast, Zeus Pod, which a friend of mine is involved in producing)