"Life Itself" is directed by "Hoop Dreams" filmmaker Steve James. It includes footage that James gathered during the last four months of Ebert's life.
The longtime Chicago Sun-Times movie critic died in April after a long battle with cancer.
But the crowds at Sundance won't be the only ones watching the premiere. Filmmakers tapped into Ebert's wide online following to crowd fund $150,000 for production costs. Donors will receive a code to stream the film online at the same time it premieres at Sundance.
"Life Itself" will have screenings next month in New York, Los Angeles, Chicago and Ebert's hometown of Urbana, Ill.