The Avengers assembled in Anaheim on Saturday to save the world from the painful dearth of details about their upcoming epic film.A star-studded cast consisting of Robert Downey, Jr. (Iron Man), Chris Hemsworth (Thor), Jeremy Renner (Hawkeye), Scarlett Johansson (Black Widow), Cobie Smulders (S.H.I.E.L.D Agent Maria Hill) and Tom Hiddleston (the evil Loki) participated in a panel discussion about the Joss Whedon-directed Marvel superhero teamup, and presented footage that debuted two brand new action scenes.A number of outlets on hand summed up the scenes, which also featured Samuel L.