Iron Man 2 News Round-Up: Crossover Cameos and Reshoots? Dan Koelsch, January 19, 2010January 19, 2010 While we wait for news of anymore viral for this summer’s Iron Man 2, there’s a couple of interesting stories and theories circulating the web worth mentioning. First of all, Variety reports that S.H.I.E.L.D. Agent Coulson (Clark Gregg) will make an apperance in both Iron Man 2 and Thor, which…