Nicholas Stoller makes his directorial debut with Forgetting Sarah Marshall, the latest hysterical R-Rated romp from the Apatow Productions camp and Universal Pictures.  This time around, Stoller is directing Knocked Up scene-stealer Jason Segel, whom he previously collaborated with on Apatow’s Undeclared series.  The Frat Pack Tribute had a chance to participate in a roundtable interview session with Stoller during the Forgetting Sarah Marshall Los Angeles press day. In our interview, Nicholas Stoller discusses directing improvised material, what to expect on the DVD, his upcoming projects and the challenges of shooting Segel’s much-discussed nude scene.