The hip-hop crew and their former manager’s dispute rumbles on.

Ice Cube, Dr Dre, former NWA members and other makers of the NWA biopic Straight Outta Compton, have demanded that a huge portion of Jerry Heller’s $110 million defamation suit be dropped.

They argue that Heller’s claims did not prove defamation, but instead brought a “hodgepodge of conclusory allegations and subjective interpretations of the film,” and that Straight Outta Compton was based on opinion, therefore not legally actionable.

“The ‘Jerry Heller’ character in the film is not shown committing any improper or illegal actions, or even admitting that he had ever done anything improper,” reads the motion to dismiss. “Rather, the film depicts criticisms articulated by others about plaintiff, which plaintiff’s own memoir concedes had been very publicly leveled against him … It is impossible to conceive of a serious docudrama exploring this history that would not depict these disputes, and the first amendment protects the right of film-makers to tell this story.”

Music mogul Jerry Heller, played by Paul Giamatti, was unhappy with the way he was portrayed in the film so took out a lawsuit against the makers of Straight Outta Compton last November.

The case was expected to be settled out of court. Don’t count on that happening now.

Meanwhile, it’s been announced that Ice Cube and his son O’Shea Jackson, who plays the NWA founding member in Straight Outta Compton, are due to present an award at the Grammys on February 15.