Mark Ruffalo Posts Hilarious Behind-the-Scenes Avengers Photos Wearing Hulk's Chest Piece

Now we know what a mash-up of Mark Ruffalo and Hulk would look like — and it's hilarious. Ruffalo, 51, posted two behind-the-scenes shots from Avengers: Endgame giving a glimpse of how the CGI effects were done to transform him into the Hulk.