The first teaser trailer has just arrived for Maleficent: Mistress of Evil; below is the official information from the Walt Disney Studios where the details of the story are shared. Maleficent: Mistress of Evil is a fantasy adventure that picks up several years after Maleficent, in which audiences learned of the events that hardened the … Walt Disney Studios Releases First Teaser Trailer for ‘Maleficent: Mistress of Evil’