'The Irishman': A digitally de-aged Robert De Niro shows us how far the tech has come

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Martin Scorsese's long-awaited mob movie "The Irishman" is a decades-long epic that uses de-aging visual effects on the film's stars — Robert De Niro, Joe Pesci, and Al Pacino. The latest Mach at the Movies looks at how far this technology has come to give us younger versions of these highly familiar faces.