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Sundance Film Festival has invited 26 contributors of helmer Kevin Macdonald’s “Life in a Day” to attend the pic’s Jan. 27 world premiere.

As part of the gala, Macdonald and the 26 filmmakers, credited as co-directors — who hail from locales such as Kabul, Afghanistan, and Woonsocket, R.I. — will participate in a Q&A session following the screening.

“Life,” which draws from 4,500 hours of footage submitted by individuals in 192 countries, was a late addition to the Sundance lineup and will screen in the fest’s centerpiece section.

Produced by Ridley Scott and financed by YouTube, the film includes footage of a Korean man’s nine-year worldwide cycling trek, a Russian free-runner in Moscow and a young mother battling cancer.

“Every day, we felt like we were seeing 20 different possible films as we got insights into so many people’s lives,” Macdonald said. “It is a testament to the skill, insight and generosity of so many contributors that we have ended up with such a powerful, cohesive and emotionally engaging film.”

Fest organizers also will stream a live broadcast of the film on YouTube, with a rebroadcast airing Jan. 28 at 7 p.m. in local time zones, and subtitled in 25 languages.

The Sundance fest runs Jan. 20-30.