Elizabeth Olsen on Why it Was Meta Filming 'WandaVision' After Growing Up on the Set of 'Full House'

ET has an exclusive look at 'Assembled: The Making of WandaVision,' a new special giving fans a behind-the-scenes look at the creation of the first Marvel Cinematic Universe TV series, now streaming on Disney+. In the clip, Paul Bettany and Elizabeth Olsen talk about filming in front of a live studio audience for the first episode, with Olsen explaining why this was a 'meta' experience for her after growing up on the set of 'Full House,' which starred her older sisters, Mary-Kate and Ashley Olsen.