(CBS) — A documentary playing at the Siskel Film Center Sunday afternoon aims to tell the complicated story of a prolific local artist.

Peter Anton has been drawing portraits, painting and making other kinds of art for 70 years, mostly in his home in East Chicago, Indiana.

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The 83-year-old is the subject of “Almost There,” a documentary co-directed and co-produced by Dan Rybicky and Aaron Wickenden.

The pair met Anton at Whiting’s Pierogi Fest in 2006 where he was drawing children’s portraits, says Rybicky.

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At first, he says, they didn’t even want to make a movie about him. They just wanted to help him fulfill his last life wish – to show his work publicly.

Rybicky says just ahead of an exhibit that Rybicky and Wickenden set up at Intuit, an art center in Chicago’s West Town, a charge from Anton’s past surfaced and threatened to derail the show.

They kept filming because about a year after Anton’s exhibit, he was forced to move out of his decrepit home and into a retirement center in Calumet City, says Rybicky.

Anton came to the film’s sold-out premiere Friday night and took questions along with the directors.

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Rybicky is hopeful “Almost There” will air again after this weekend, but hasn’t confirmed anything yet.