United Artists has acquired rights to and will develop young-adult novel "The Heartbreakers" and will give it the new name of "Rules of Dating for Teenage Girls." The film is based on a book by journalist-turned-novelist Pamela Wells, who published her debut novel "The Heartbreakers" in fall 2007. She followed that up a year later with a second novel, "Crushes," that focused on many of the same characters. "Rules of Dating" centers on four best friends and their on-again, off-again dalliances with boys. After several of the girls are dumped, they devise a set of rules they are sure will snag any man and prevent future breakups.