It’s hard to imagine a Julia Roberts movie deal going down at Slamdance, a film festival for those who think Sundance is too mainstream. But that happened Jan. 23, when the actress nabbed remake rights to the documentary Batkid Begins: The Wish Heard Around the World. The actress will produce a narrative feature based on the doc that chronicles the story of a 5-year-old boy with leukemia whose wish to be Batman for a day spawned a worldwide social-media phenomenon. Roberts will play the boy’s mother, with CAA packaging the project for potential financiers.