Harry Potter and the Deathly Hallows – Part 2
The trio return to Hogwarts, where Severus Snape (who is a follower of Voldemort) is headmaster. Harry reveals to all the students that Snape killed Dumbledore. Snape tries to attack Harry but Professor McGonagall defends him and forces Snape to run away. McGonagall, the other teachers and the Order of the Phoenix members prepare to defend the school from Voldemort and his followers, who have come to stop Harry from getting the diadem.