Barbie or Oppenheimer?Oppenheimer or Barbie?Which are you seeing this weekend? The candy-colored film directed by Greta Gerwig, or the dark (with literally black-and-white scenes) film directed by Christopher Nolan? Both have amazing casts. (Margot Robbie! Ryan Gosling! Kate McKinnon! vs. Cillian Murphy! Robert Downey Jr.! Emily Blunt!, respectively.) Both got great reviews. Both sound interesting.And that's why many are planning on doing a doubl ...