Regina Hall's inherent Regina Hall-ness - her magnetic fusion of poise and charisma - never shows in One Battle After Another. Instead of that usual charm, Hall is sober-minded and serious. As Deandra, a guerilla involved with a revolutionary sect called the French 75, she's waging war against oppression, whether that's militarized police, migrant detention camps, Christmas-worshipping white nationalists, or fascism at large.