The arrival of Disney+ will kick off a new era in streaming when it crashes into a field of established stand-alone services such as Netflix, Hulu, Amazon Prime Video and HBO Now. Also entering this ever-expanding arena are brand-new services from Apple (Apple TV+) and WarnerMedia (HBO Max). With family-friendly films and TV shows from Disney, Marvel and Lucasfilm (“Star Wars”) like “The Mandalorian” (pictured), as well as Pixar and National Geographic slated for its expansive library, Disney+ is expected to be a formidable player in the streaming wars. Here’s everything we know about Walt Disney Co.’s direct-to-consumer streaming service so far.