It's astounding! It, of course, is Juliette Lewis' Broadway debut as Magenta in Richard O'Brien's The Rocky Horror Show. Broadway.com Editor-in-Chief Paul Wontorek caught up with the Cape Fear and Yellowjackets star about her introduction to The Rocky Horror Picture Show and her adoration for her supernatural co-stars. Lewis' last venture in the theater was the 2006 West End revival of Sam Shepard's Fool fo…