Cannes, May 14 -- Veteran actor Robert De Niro has unveiled the first teaser of a new documentary he's working on, focusing on his late father and his own experiences with fatherhood and aging. The preview was shown during a conversation at the Cannes Film Festival, where De Niro appeared with French artist JR, who is co-creating the film, Variety reported.

During the discussion, the 81-year-old actor opened up about his ongoing project and shared, "We're kind of seeing where we're going. I don't know where we'll go. There's no time limit, as far as I'm concerned. You just do it, and wherever it arrives or winds up, that's OK."

According to Variety, the teaser included large pictures of De Niro's father, Robert De Niro Sr., displayed ar...