For major theatrical releases, bigger is better. “John Wick: Chapter 4” is 169 minutes — more than an hour longer than the original. “Avatar: The Way of Water” is 192 minutes. “Dune” was 155 minutes. “The Batman” clocked in at 176 minutes, a franchise record. Matt Belloni at Puck reported that Christopher Nolan’s “Oppenheimer” will be around 180 minutes, his longest.