she sued singer Joey Ramone’s brother Mitchel Hyman and his manager David Frey for allegedly trying to cut her out of the film and the band’s merchandising deals.But Hyman — who countersued last month — told The Post the movie isn’t a band biopic.“It’s not a book about the Ramones,” Hyman told The Post of his 2009 memoir “I Slept with Joey Ramone,” which the movie is set to be based on.“It’s not a Ramones story,” he said of the book, which outlines growing up with the singer who battled debilatating OCD before his 2000 death. “It’s a story about growing up with a guy … who defeated the odds and became an inspiration to millions.