I only read this a few months back and really enjoyed it...

http://www.cinemablend.com/new/Bryan...sic-70152.html

Singer is going to move on to make an adaptation of Heinlein's 1966 classic The Moon Is A Harsh Mistress after he finishes X-Men: Apocalypse - the final entry in the "First Class" trilogy of X-Men movies. Arrow executive producer, Davis Guggenheim, is going to be adapting the Heinlein story into a film titled Uprising.