Dakota Johnson dazzled in sheer, sparkling Gucci at the L.A. premiere of “Madame Web,” where she spoke to “Extra” on the red carpet. She opened up about never seeing herself in a superhero film and what made her say yes to this role. She also dished on her “very cool” super suit and shared what she asked Marvel star Elizabeth Olsen about stepping into this world. “Madame Web” is out February 14.