In 2016's Captain America: Civil War, Marvel movie fans watched in horror as their beloved team of Avengers fought each other both ideologically and literally. In 2019, Lou Ferrigno has upped the ante. Ferrigno first played The Incredible Hulk in the landmark 1970s/80s CBS television series. Now, Ferrigno has declared war on his brother in Hulkitude: Mark Ruffalo. As reported by Comicbook.com, Ferrigno was very disappointed by Ruffalo's portrayal of the character in Avengers: Endgame -- particularly with Smart Hulk. Smart Hulk, for those who have somehow still yet to see Avengers: Endgame, is the catchy nickname …