Screen Gems is moving forward on “Bone Deep,” a heist movie it had been developing with Overbrook Entertainment, with an early 2008 start now planned. John Luessenhop, who rewrote the script with Avery Duff, is directing the film, about an L.A. detective gunning against a hip band of thieves as they prepare a $20 million heist. Will Packer will produce. Gabriel Casseus and Peter Allen wrote the original version of the script. “It’s ‘Heat’ meets ‘Ocean’s Eleven,’ but with a much younger cast,” said Screen Gems prexy Clint Culpepper.