Watch: Touching tribute to ‘Batkid’ who saved a city and captured hearts

SAN FRANCISCO – A little boy battling a deadly disease dreamed of being Batman and the City of San Francisco made it happen.

Now, 5-year-old Miles Scott, better known as ‘Batkid,’ may be headed to the big screen.

When citizens learned the little boy needed volunteers to line the streets, they responded in a big way.

Organizers with ‘Make A Wish’ thought a crowd of 200 people would show up.

Instead, 25,000 people lined the streets to cheer him on and become a kid for a day.

‘Batkid Begins’ is a documentary about Miles’ battle with leukemia and San Francisco’s push to turn the Bay Area into Gotham City.

“One thing that struck me the most was how many people were holding up signs saying, ‘Save us Batkid.’ And I looked at those signs and I thought, ‘You mean that literally.’ In helping him to live this dream, we were saving ourselves. We wonder why we’re not happy a lot of the time and it’s because we forget this sort of thing. But here was an event that forced us to remember,” said Chris Taylor, with Mashable.

The trailer for the film was released at the 2014 San Diego Comic-Con.

The full-length film will be released Nov. 15 in select theaters.

Miles is now a leukemia survivor.