“The Fabelmans” stars Gabriel LaBelle (“The Predator,” “American Gigolo” series) as 16-year-old aspiring filmmaker by the name Sammy Fabelman alongside his mother played by Michelle Williams and his father played by Paul Dano. While the film takes some creative liberties, Spielberg based the film quite closely on his parents and his childhood, even co-writing the screenplay with playwright and “West Side Story” screenwriter Tony Kushner.