Home People Robert Downey Jr. talks "Iron Man 4" on David Letterman (VIDEO) 27 October 2014, 11:46 am EDT By Silvia Hrabkovska Share on Facebook NEXT POST David Letterman and Robert Downy Jr. talk the future of Iron Man. Share on Facebook NEXT POST Copyright ©2024 BOOMSbeat., All rights reserved. people Share Connect Tweet 0 Comment Email