Marvel Studios is hyping fans up even more for “Avengers: Endgame.” Another trailer has dropped, taking fans on a journey throughout the last 22 Marvel Cinematic Universe films. There are clips from “Iron Man,” “Ant-Man,” “Black Panther,” and more in the epic trailer. The clips are fueling fans theories that the movie premiering on April 26th will involve time travel via the Quantum Realm, too.