Cate Blanchett, T.J. Miller, Kristen Wiig, Kit Harington, Jonah Hill, Jay Baruchel, America Ferrera, Djimon Hounsou, Christopher Mintz-Plasse, Craig Ferguson and more in 'How To Train Your Dragon: The Hidden World' first trailer. Continues the adventure of Hiccup and his dragon Toothless. This popular trailer is in HD. Check it out