Oakland, California, in recent years has been the setting of a number of bold, stylistically distinctive takes on race, African American identity and social conditioning, from the searing tragedy of Fruitvale Station through the hip-hop swagger of Blindspotting to the gonzo satire of Sorry to Bother You. That makes Black Panther co-writer Joe Robert Cole's reflection on the vicious cycle of gang culture and its toll on families an earnest but unrewarding disappointment.