Expert Director Irvin Kershner made trash out of Frank Miller’s script for Robocop 2 and he blamed the writer even though the original written work was much better than the resequenced and hacked and slashed product Kershner put on the screen.
He’s over-rated.
Even good directors can have a turkey. Most folks admit Kershner was the best director of any of the films in the “Wars” franchise.