With Ultraman: Rising,” animator-turned-director Shannon Tindle combined his love of the superhero anime franchise with a parenting drama wrapped around Ilm’s dazzling 2D animated look drawn from manga and anime.

It all comes together in an epic water battle involving Ultraman (Christopher Sean), Ultradad (Gedde Watanabe), and baby Kaiju, Emi. First Ultraman and Emi fight Mecha Gigangtron, only to discover that the real Gigantron (Emi’s mom) is still alive underneath. She then joins Ultradad as part of a foursome to fight Dr. Onda, head of the Kaiju Defense Force, who commands the robotic Destroyer.

Tindle, who participated in a recent press confab at Skywalker Ranch and Ilm in San Francisco, told IndieWire that his choice of water for the climactic battle was purely economical. He couldn’t afford to destroy a city and crowds. “I knew that I could make it on the water, and it would allow...