So, for all its flaws -- which are many -- I found it very funny and worth going to. Utterly unmemorable story after leaving the theater, yet I'll bet it's probably still funny when it later pops up on television.
Here's the trailer. Understandably, it focuses more on the plot -- or, rather, the action, since the plot as I said is not remotely its strong point -- but they do manage to get some of the dialogue and fun in, which is really where the movie shines, rather than the running around and chases.
As a bonus, I was able to find a few scenes, so here's one of them. In this clip, Jason Bateman and Rachel McAdams think they're playing the Game Night game to track down his supposedly-kidnapped brother and have followed the clues to a seedy bar with play-actors from the game company posing as "big, mean thugs." Except he actually has been kidnapped, is being held in back room bound and gagged, and the very dangerous men are, in fact, involved. The couple soon learn that this isn't a game, but that hasn't come yet.