Is David Zaslav Hollywood’s white knight, or a Trojan horse? The new CEO of Warner Bros. Discovery is sitting atop a huge media empire. WSJ’s Joe Flint profiles Zaslav’s cost-cutting across some of the biggest properties in media, and explores what that might mean for our watchlists. Further Listening: - The Quick End to CNN+  Further Reading: - There’s a New Media Mogul Tearing Up Hollywood: ‘Zas Is Not Particularly Patient’  Learn more about your ad choices. Visit megaphone.fm/adchoices