In 2018, Earth’s Mightiest Heroes will finally meet The Guardians Of The Galaxy. Marvel has announced that ‘Avengers: Infinity War’ has kicked off filming with a geektastic behind-the-scenes featurette from the first day of production. Robert Downey Jr. also used Facebook Live to answer some fan questions. You can check that out below. AVENGERS: INFINITY WAR explodes into Irish cinemas April 27, 2018.