'Real Steel' director Shawn Levy is staying in the movie realm of family fantasy and is in negotiations to direct a big screen adaptation of the popular series of children's books called 'The 39 Clues' for DreamWorks.

DreamWorks bought the rights years ago hoping to get Steven Spielberg to direct but he's moved on to other films (namely 'Lincoln' and 'Robopocalypse') and now is only going to produce. Brett Ratner was also a name being thrown around to helm the film.

The '39 Clues' books includes cards and an online game that have clues to a mystery kids must try and solve for cash prizes. The series revolves around the powerful CaHills family and their famous relatives, who include Harry Houdini and Napoleon.

Deadline reports that the movie will be about two ordinary kids who discover their famous family history and set off on a global adventure hunting for treasure. So, sort of a 'National Treasure' type film without the bad hairpieces. DreamWorks is hoping to turn this into a potential franchise.

Levy's next directing gig is the comedy 'Interns' starring Vince Vaughn and Owen Wilson.