Here’s the trailer for Magnolia Pictures’ Life Itself, a documentary about the extraordinary life of the late Roger Ebert, ”the definitive film critic in America.” The story follows his career, from his days working at the Chicago Sun-Times and his authorship of Behind The Valley Of The Dolls, through his influential television show with Gene Siskel and, finally, his battle with cancer. The documentary takes its title from Ebert’s memoir of the same name, and it includes interviews with Martin Scorsese, Werner Herzog, Errol Morris, and of course, Ebert’s wife Chaz.

The film is directed by Steve James, who also directed Hoop Dreams, and is produced by Scorsese and Steven Zaillian. Life Itself will be released on July 4.