Yesterday saw the news surface that Joseph Gordon-Levitt is attached to a Sandman movie in some capacity with it said he is on board as a producer and possibly the star and the director.
Joseph Gordon-Levitt took to his Twitter account to confirm that he is involved with Sandman and will be a producer. Regarding anything else, that's still up in the air.
Just to clarify, folks. I've signed on as a producer on Sandman. The rest remains to be seen. Delighted you guys are excited. I am too!— Joseph Gordon-Levitt (@hitRECordJoe) December 17, 2013
David Goyer (The Dark Knight Trilogy, Man of Steel) pitched the idea to Warner Bros. and is a producer on Sandman as well.
Neil Gaiman also looks to be involved in Sandman as Joseph Gordon-Levitt confirmed the news with mention of the writer where it's noted to be a prelude. Previously, it was reported the movie looks to be the start of a new franchise.