NBA Summer Mailbag Plus Kevin Costner on His Best Baseball Movies, Acting Lessons, and Navigating True Superstardom | The Bill Simmons Podcast

HBO and The Ringer’s Bill Simmons opens the NBA summer mailbag to cover who will be next year’s Pascal Siakam, Paul George–to-L.A. conspiracy theories, the underrated Warriors, and more (2:55). Then Bill sits down with actor Kevin Costner t…