A new behind-the-scenes featurette for Under the Dome offers our first look at footage from the upcoming summer series, plus interviews with the cast and author/executive producer Stephen King. Stars Britt Robertson (Angie McAlister), Mike Vogel (Dave "Barbie" Barbara), Rachelle Lefevre (Julia Shumway), and visual effects supervisor Stephen Fleet talk about this fictional town of Chester's Mill, Maine, which becomes inexplicably trapped under a massive dome, sealing it off from the outside world. Take a look at this new series, debuting on CBS with the Season 1 Premiere Sunday, June 24.