Gary Leslie Whitta (born 21 July 1972) is an English-American screenwriter, author, game designer, and video game journalist. He was the editor-in-chief of both the UK and US editions of PC Gamer magazine and a contributor to the gaming magazine ACE. Whitta was the screenwriter of The Book of Eli (2010), co-wrote After Earth (2013) with M. Night Shyamalan, and co-developed the story for Rogue One (2016). Source: Wikipedia (en)