This was a conversation I had with a friend after seeing JW:
her: omg I fucking love Chris Pratt
me: Guess who he's doing a movie with in the next year and a half or so?
her: who?
me: JLaw!
her: HOLY SHIT. I don't even care. Can we buy our tickets right now? Thats a perfect pair.
^For the younger audiences, I don't think this would be a rare reaction.
Game of Thrones will not have a real effect on JW. The NBA game, also, is pretty late in the afternoon to where most people wouldn't be going to see a movie that late on a sunday anyway. I don't think they will do much.