Continuity mistake: When Karen enters the apartment, the position of the board game boxes on the table change, especially the long white board game box which just out and back into a stack. (00:55:05)
Continuity mistake: When Karen is lying on the table, her jacket is unbuttoned. And when Jack pushes her off the table and she gets back up, it's still unbuttoned. But as the shot cuts to her heading quickly over to the door, her jacket is now buttoned, but there was no time for her to do it.
Revealing mistake: When Grace is getting out the Board Games for her and Karen to play, the names of the Board Games have been covered with strips of tape. (00:53:00)
Answer: A history of the game can be found at http://www.fast-rewind.com/bacon.htm.
J I Cohen