Disney+ is your one-stop shop for all things Disney, Pixar, Star Wars, Marvel, and National Geographic. Its new arrivals for September 2023 include this year's live-action version of The Little Mermaid, Pixar's Elemental, the Star Wars miniseries Ahsoka, and the second season of I Am Groot. To learn more about Disney+'s offerings, read Mashable's guide to the best streaming services.