"x-men days of future past clip" x-men days of future past" "x-men: days of future past" "trailer" "official trailer" The ultimate X-Men ensemble fights a war for the survival of the species across two time periods in X-MEN: DAYS OF FUTURE PAST. The beloved characters from the original "X-Men" film trilogy join forces with their younger selves from the past, "X-Men: First Class," in order to change a major historical event and fight in an epic battle that could save our future. "official" "HD" "2014" "official trailer 2014" "hugh jackman" "jennifer lawrence" "michael fassbender" "patrick stewart" "ellen page" "marvel" "x-men" "clip" "movie clip" "quicksilver" "power piece" "b-roll" "footage" "premiere" "new york city premiere" "x-men days of future past premiere" "interview" "red carpet"