“Step Into…The Movies with Derek and Julianne Hough,” the one-hour special event inspired by some of the most iconic moments of dance on film, rounds out its star-studded cast with illustrious guest stars including Kevin Bacon, Charli D’Amelio, Ariana DeBose, Jenna Dewan, Harry Shum Jr., Baz Luhrmann, Tate McRae, Rob Marshall, Kenny