Check out what director Dana Nachman, Make-A-Wish's Patricia Wilson and Mike Jutan (The Penguin) had to say about capturing the unforgettable day.

The documentary chronicles the emotional journey of one 5-year-old boy's wish to be Batman for a day.

The documentary the film is based on, 'Batkid Begins: The Wish Heard Around the World,' premieres at Slamdance tomorrow.