On the red carpet for the premiere of Iron Man 3, The Avengers director Joss Whedon let slip a couple of interesting tidbits concerning the introduction of new characters in The Avengers 2 (a “brother and sister act” presumably referring to Quicksilver and the Scarlet Witch) as well as stating that the now completed pilot for Agents of S.H.I.E.L.D. will explain how Agent Phil Coulson (Clark Gregg) is still part of the Marvel Universe.