Joseph Gordon-Levitt has signed on for "Sandman", but won't be starring in the film.

Gordon-Levitt confirmed on his Twitter account he has signed on as a producer for the DC Comic inspired movie.  The "Don Jon" actor added whether or not he will make an appearance in the movie remains to be seen.

"Ladies and gentlemen, I'm incredibly honored to be working with David Goyer, Warner Bros, and @neilhimself on SANDMAN.  #Prelude," Gordon-Levitt wrote.

For those unfamiliar with DC Comic's "Sandman", check out the below description of the series, according to The Verge:

The Sandman comics tell the story of the Lord of Dreams, most often referred to as either Dream or Morpheus, a wiry, haughty personification of dreams themselves.  After being held captive for 70 years, Gaiman's 75-issue run follows Dream / Morpheus as he adapts to the world he finds outside his prison and rebuilds his kingdom.  The comics segue between horror and fantasy, and gained a dedicated following after the first issue was released in 1989. Their success helped to solidify the position of DC's offshoot Vertigo Comics by outselling Superman and Batman at the time.

According to multiple reports, the film has been in pre-production for a while and has hit many delays.  The set backs for the movie have been related to its script.  Deadline reports Warner Bros. has finally settled on a script for "Sandman".

"There are no concrete details about the movie as yet, but Gordon-Levitt used the hashtag "#Prelude" in his tweet. That reference suggests the story may focus on issues one to eight of The Sandman, collected together in a trade paperback called Preludes & Nocturnes," Verge reports.

Gordon-Levitt is no stranger to the DC Universe.  The actor played Blake, which turned out to be Batman's sidekick Robin, in the "The Dark Night Rises".