Remember Batkid? Miles, whose battle with leukemia and love of Batman, captivated a nation. Last November, he and the Make-a-Wish turned San Francisco into a Batman adventure, one that touched people’s hearts. A new film, Batkid Begins, looks at Mile’s story, and what it spawned. The feature-length documentary was create by filmmaker Dana Nachman.

Batkid Begins is in the middle of a crowdfunding campaign on Indiegogo, and has little over three weeks to raise about half of the $100,000 goal to finish the film.