Scarlett Johansson, Joseph Gordon-Levitt on "Don Jon" "Insidious: Chapter 2" stars get "physical" in horror sequel "Saw" director James Wan and screenwriter Leigh Whannell have teamed up again for "Insidious: Chapter 2," starring Patrick Wilson and Rose Byrne. Wilson, Byrne, Whannell and co-star Lin Shaye sat down with CBSNews.com's Ken Lombardi to discuss the sequel, which they say is more physical than the first installment.