Co-written with Joe Layden, the book is to be published by Simon & Schuster's Touchstone imprint in fall 2014. It will include an introduction written by the 1987 movie's director, Rob Reiner.
"It was joy to work on such a magical film with an amazing cast of talented actors and friends," Elwes said in a statement Friday. "It will be great fun to revisit 'The Princess Bride' and to share my fond memories of the unforgettable experience we all had."
Notable deaths of 2014 [PHOTOS]
James Wan tapped to direct 'The Conjuring 2'