Fantastic Beasts and Where to Find Them

In this Comic-Con trailer for Fantastic Beasts and Where to Find Them, a man is describing something that he saw when a ghost dives down underground. We see something moving through the ground, causing bricks from the sidewalk to go flying. A boy begins speaking about a long-hidden society of creatures, and we are shown a young wizard who arrives in the city with a case that is said to contain magical creatures. Unfortunately, some have escaped. We are shown napkins magically flying and chandeliers exploding, and led to believe the chaos is a result of the creatures' fear. The wizard tells the police that there's nothing to worry about, but his monsters continue to destroy the city.