For improvisers, YESAND serves the same purpose as the North Star does for sailors: that of a guiding light and a way to keep moving forward, even though the outcome of the journey is uncertain. The fundamental Improv principal is that there is a difference between ACCEPTANCE and AGREEMENT.
Last name meaning Marsh: This interesting surname, of Anglo-Saxon origin, is a topographical name for someone who lived by or in a marsh or fen, deriving from the Olde English pre 7th Century mersc meaning marsh...
The Dead Marshes were actually a water-filled parking lot, the same one that had doubled for outside the mines of Moria in The Lord of the Rings: The Fellowship of the Ring (2001). Passengers in passing trains on the adjacent railway line were able to see Elijah Wood, Sean Astin and Andy Serkis performing on set.