Italianamerican presents itself as a 1974 documentary—a brief work, running under an hour—in which Martin Scorsese sits down with his mom and dad. Catherine, who appeared as Tommy DeVito’s mother in Goodfellas, and Charles, who had a role as Henry Hill's cellmate in that same film, are featured, creating a snapshot of what it was like to be Italian-American at the time. The filmmakers' parents share stories about the…