A couple of years ago, 5-year-old cancer survivor Miles Scott became a viral sensation when he asked the Make-A-Wish Foundation to help him play Batman for a day. They transformed all of San Francisco into his own personal Gotham City, and we all had a collective ugly-cry watching Batkid save the day. We get to relive all those feels in a new documentary about the whole event, out June 26, and then again when Julia Roberts adapts the doc into a feature film! Pro tip: There’s no such thing as too many tissues.