VIDEO : Robert Downey Jr. Shares Happy Birthday Message For Iron Man

Iron Man star Robert Downey Jr. shared a never-before-seen video taken when filming the blockbuster climax of Avengers: Endgame, which for the first time assembles the film's many heroes in one place.The video sees Downey, with Captain America star Chris Evans, Thor star Chris Hemsworth, and Spider-Man star Tom Holland, participating in a joint sing-along ...