WandaVision has revealed some pretty surprising details across its first seven episodes, as the mystery of what's happening to Wanda Maximoff (Elizabeth Olsen) and The Vision (Paul Bettany) has only gotten more and more complicated. The series' most recent episode, "Breaking the Fourth Wall", took things even further, with the reveal that (spoiler alert!), Wanda's next-door neighbor Agnes (Kathryn Hahn) has secretly been pulling the strings of the sitcom-themed world of Westview, as a villainous version of the Marvel Comics witch Agatha Harkness. The reveal of Agatha's true machinations was marked by a detailed and surprisingly-catchy montage sequence -- and a new interview from WandaVision cinematographer Jess Hall reveals how it all came together.