Seth Rogen stars in the No. 1 movie in America, Monsters vs. Aliens, along with heavy-hitters Reese Witherspoon, Kiefer Sutherland, Hugh Laurie, Will Arnett and Rainn Wilson. Check out TV Guide Network's chat with the hilarious cast and find out which actor likens his brainless blob of a character to Rush Limbaugh, and who would like to be considered for a role as the next Bond villain.