Turn left go into the corridor on the left and into the hallway on the left. Go through the door on the right and step down into the theater and wait on the right side of the first set of seats.
Turn left and enter the closet. Walk out of the closet and enter the theater. Wait there.
Turn around and exit out the door on the left into the closet. Walk all the way through the closet and exit the door on the black door on the right. Stop once at the doorway looking over the theater room.