Popsugar Entertainment Best Of 2018 Books Being Made Into Movies in 2018 26 Books Becoming Movies in 2018 24 June 2018 by Shannon Vestal Robson View On One Page Photo 26 of 27 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 26 The War With Grandpa by Robert Kimmel Smith What it's about: A young boy has to give up his room for his grandpa's use, so he devises a series of pranks to drive him out. Who's starring: Robert De Niro plays the titular grandpa; Uma Thurman and Christopher Walken costar. Release date: Feb. 23 Previous Next Start Slideshow Best Of 2018Best Of 2017Books To MoviesMoviesBooks